The Spy Master's Game
The Spy Master's Game
The party intercepts a coded letter bound for a shadowy figure known only as the Whisper, implicating them in an assassination plot against a minor nobleman. Tracking the letter's origins through Waterdeep's taverns and merchant halls, they must uncover the conspiracy before an innocent noble becomes the killer's next victim—and before the real masterminds silence them.
Read Aloud
You're minding your business at the Wandering Wyvern when a courier stumbles past your table, his red tabard torn and stained with blood. Before he collapses, he presses a sealed letter into your hands with trembling fingers. The parchment is unmarked, but the wax seal bears a single whispered symbol—a curved line like a breath. The dying man's last word is barely audible: "Whisper... stop... Blackwell..."
Description
The party finds themselves holding evidence of a conspiracy. The letter, when opened, contains coded references to "the Blackwell contract" and "elimination by evening." The courier belongs to the Waterdeep Messenger Coalition and was bound for the Dock Ward. City Watch arrives within minutes; if the party mentions the letter, they're pressured to surrender it—the Watch captain (Merric Silvertongue) is professional but clearly outmatched by the mystery. The letter itself is the key: a DC 13 Intelligence (Investigation) check reveals it's written in a simple cipher (words reversed within lines). Once decoded, it reads: "Deliver three hundred gold to the Salty Flagon. Blackwell dies at sunset. Payment on completion. —The Whisper"
DM Notes
If the party hands over the letter to the Watch, Merric will pursue it officially but slowly—giving them time. Alternatively, they can secretly copy the cipher text. The Salty Flagon is a real tavern in the Dock Ward, a hangout for cutthroats and mercenaries. Merric Silvertongue is not corrupt but overwhelmed; he respects the party if they share information. Establish urgency: sunset is only a few hours away. If the party asks the Watch captain for information on "Blackwell," he can provide that there are three notable Blackwells in the city: Lord Tomas Blackwell (merchant lord, well-known), a ship captain named Harwin Blackwell, and a scholar named Dallis Blackwell who works at the Candlekeep Repository branch in Waterdeep.
Read Aloud
The Salty Flagon reeks of brine, old beer, and desperation. Salt residue crusts the windows, and the bar's wooden frame is scarred with knife marks—some fresh. A one-eyed halfling tends the bar, and the few patrons scattered throughout the gloom eye newcomers with the hunger of sharks. A back corner is sectioned off by a tattered curtain; muffled voices carry faintly through the fabric. A leather purse, visibly heavy with coin, sits unattended on a corner table.
Description
The party enters the Salty Flagon to investigate or stake it out. The one-eyed bartender, Marta Grimwind, is cautious but can be persuaded (DC 12 Charisma (Persuasion) or a bribe of 10+ gold) to reveal that a nervous man came in an hour ago asking to hold a "package" for a client. He's been waiting in the back for the client to arrive with payment. A DC 13 Wisdom (Perception) check from anyone watching the curtained corner reveals two figures: one is clearly hired muscle (a scarred man, possibly the assassin), and the other is a woman in a merchant's coat scribbling notes. If the party listens at the curtain (no check required), they hear fragments: "...Lord Blackwell won't see it coming..." and "...the three hundred secures our silence." The woman leaves after 5 minutes, giving them a choice: follow her or confront the assassin.
DM Notes
This scene hinges on player agency. If they attempt to apprehend or investigate the assassin directly, Combat Encounter 1 (Hired Killer & Dock Thugs) triggers. If they follow the woman, advance to Scene 3. If they take the bait coin, a low-level thug will mark them for return to the assassin. The woman's merchant coat bears subtle embroidery—a sigil of the Merchant's Guild, hinting at inside involvement. Marta is a knowledge source; she's seen dozens of assassination plots, so she's not shocked. She respects directness.
Read Aloud
You trail the woman through Waterdeep's winding Dock Ward streets as the sun dips lower, painting the sky amber and blood-red. She moves with purpose, never looking back, her merchant coat fluttering as she climbs the granite steps of a sprawling warehouse fronted by a brass placard: "Blackwell Trading House—Est. 1347." She produces a key and enters. Through the warehouse's tall windows, you glimpse her ascending a staircase toward what must be the upper offices.
Description
The party discovers the woman works for Blackwell Trading House—or appears to. This is a crucial plot twist: the woman is actually Sylvia Harwick, a mid-level functionary who has been blackmailed by the assassin's handler. She genuinely doesn't know the target is Lord Tomas Blackwell himself. If the party confronts her at the warehouse door or follows her inside, she panics and either flees (allowing pursuit) or surrenders with evidence: a ledger showing embezzlement by the warehouse's deputy manager, a half-orc named Thorben Crask. The ledger implicates Crask in a scheme to poison the books and make Blackwell Trading House insolvent—a crime that would ruin Lord Tomas Blackwell's reputation. Crask hired the assassin to eliminate Blackwell before an audit could expose him. A DC 14 Intelligence (Investigation) check reveals that Crask is due to meet with the handler (the woman Sylvia paid) at Blackwell's private residence to collect a bribe from the soon-to-be "freed" assets.
DM Notes
Sylvia is genuinely remorseful and terrified. She has a young daughter and was threatened. She becomes an ally if spared. The warehouse interior is multi-level, filled with crates and stock; it's a good chase location if Thorben Crask tries to escape here. Establish that Lord Tomas Blackwell's residence is in Castle Ward, a 15-minute carriage ride away—sunset is now 30 minutes away, raising tension. If the party arrests Sylvia and turns her over to the Watch, Merric will confirm her story and provide a description of Thorben Crask (half-orc, scarred face, burns on his left hand from a warehouse accident three years ago).
Read Aloud
Lord Tomas Blackwell's manor looms against the darkening sky, its wrought-iron gates ornate and imposing. Gas lamps flicker to life along the garden path. Through the upper windows of the eastern wing, you spot two figures: one clearly the lord himself, pacing near a window with a wine glass, the other a scarred half-orc in servant's livery, hand moving toward something concealed at his belt. This is it. The killer is already inside.
Description
The party arrives at Blackwell Manor as the assassin prepares to strike. They have seconds to act. The manor's front door is locked but sturdy (DC 12 Strength check to break down, or they can pick the lock with DC 13). An alternative is the servants' entrance, which is unlocked. Inside, a grand foyer leads to a staircase ascending to the eastern wing where Blackwell and the assassin are. The party can attempt stealth (DC 14 Dexterity (Stealth)) to avoid alerting either the assassin or the household staff. If they alert the assassin before reaching the top of the stairs, he will try to complete his contract by poisoning Blackwell's wine glass rather than using direct force—buying him time to escape. Lord Tomas Blackwell is an elderly nobleman, unarmed, and genuinely unaware of the danger. The assassin—Krath, a half-orc with burn scars—carries a vial of cloudkill poison (deadly if ingested) and will not hesitate to use it.
DM Notes
If the party fails their Stealth check or openly enter, Krath abandons stealth and uses the poison. The party then has a choice: stop Krath before he poisons the glass, or allow him to do so and force Blackwell not to drink (which risks the lord panicking and drinking anyway out of ritual). The confrontation should feel tense but winnable. If the party reveals the plot to Blackwell first, he is grateful but panicked and may try to flee—complicating rescue efforts. Krath fights only long enough to complete his contract or escape; he's professional enough to know when he's beaten. He has information about "the Whisper" (the mastermind's codename) and will bargain for his life by revealing that the Whisper is someone inside the city guard—but he genuinely doesn't know who.
Monsters
Tactics
Krath (using Spy stat block) focuses on getting to the wine glass to deliver his poison. He is not a stupid killer—if he sees he's outnumbered, he will dash toward the balcony and attempt to escape across the rooftops. The two dock thugs (improvised from Commoner stats, AC 10, HP 5 each) act as opportunistic interference if Krath has allies near the tavern; if Krath is alone, they don't appear. Krath uses his hand crossbow to create distance and his shortsword for close combat. He has advantage on Stealth checks in low light. If the wine glass is successfully poisoned, anyone who drinks from it must make a DC 13 Constitution saving throw or take 10 (3d6) poison damage and be poisoned for 1 hour.
Terrain
Eastern wing of Blackwell Manor: a study with a fireplace, bookshelves, and a wine table. Lord Tomas Blackwell stands near the fireplace, glass in hand. The room is 20x20 feet, with a hallway entrance and a set of double doors to the balcony overlooking the garden. Poor lighting (dim, flickering gas lamps). The fireplace can be used as cover; the wine table is an improvised barrier.
The reward Krath had not yet collected from the Whisper, found in a hidden belt pouch.
A coded letter from the Whisper to Krath containing instructions and payment terms. Deciphering it (DC 15 Intelligence check) reveals the Whisper's codename is used by multiple operatives—suggesting a larger organization.
A simple copper ring bearing the seal of Blackwell Trading House. While not magical, it grants the bearer advantage on Charisma checks when dealing with the Merchant Council or Blackwell's associates for the next month. Additionally, Blackwell grants each party member 50 gold and promises future patronage.
Thorben Crask's meticulous embezzlement records, proving he stole over 3,000 gold from the Trading House. These records are valuable evidence and can be sold to the Merchant Council or used to negotiate with Blackwell for additional rewards.
Story Hooks
The Whisper remains at large—a mysterious operative within Waterdeep's power structure who continues hiring assassins. Krath's vague hints suggest the Whisper may have ties to the City Watch itself. Sylvia Harwick mentions that the Whisper's agents threatened her with knowledge of her daughter's location and movements—suggesting resources and reach. Lord Blackwell offers the party an open invitation to investigate further and hints that he suspects corruption within the Watch itself. This sets up future sessions involving deeper intrigue within Waterdeep's government and the hunt for the Whisper's true identity.
Conclusion
Wrap Up
With the assassin captured or dead and Lord Blackwell safe, the immediate crisis ends. The Watch arrives shortly after (summoned by Blackwell's household guards), and Captain Merric Silvertongue takes custody of the conspirators and evidence. Thorben Crask is arrested for embezzlement and conspiracy to commit murder. Sylvia Harwick, if the party vouched for her, is released into protective custody pending investigation—her daughter is placed with a trusted family member. Krath is jailed in the Waterdeep Prison, awaiting trial. Lord Blackwell insists on hosting the party for a private dinner at his manor to thank them personally and offer his continued support.
Cliffhanger
As the party prepares to leave Blackwell Manor, Captain Merric pulls them aside privately. His expression is grim. He reveals that he ran the cipher from the original letter through his contacts in the City Watch—and found three previous assassination contracts signed with the same "Whisper" codename, all successfully carried out in the past year. Worse, he found a discrepancy in the Watch's financial records suggesting someone is embezzling city funds. He lowers his voice: "I trust you more than anyone in the Watch right now. I think the corruption runs deeper than one conspiracy. I think the Whisper might be one of us."
Next Session Hooks
- Investigate the three previous assassinations attributed to the Whisper and determine if they share a common thread or beneficiary.
- Uncover the source of the City Watch's financial corruption and identify which guard or official is embezzling funds.
- Determine the Whisper's true identity and motivation—is it simple profit, or are they working toward a larger agenda?
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