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Keep the Codex from Maltren’s Agent - AI-generated fantasy Encounter

Keep the Codex from Maltren’s Agent

Encounters
Hold · Low · 5 players, level 15

Keep the Codex from Maltren’s Agent

If the vault falls, the Codex burns, the exits seal, and Maltren’s people get the secret first.

Run the fight

Round
1
4-6 rounds
Creatures
2
Low

This round

Nothing planned.

Win The party holds the pedestal until the ward-chains finish sealing

Lose The Codex leaves the vault

Party 5 players, level 15

System D&D 2024

Cheat sheet

Hold

Hold the Heart Vault and keep the Codex from being seized or destroyed.

Win

The party holds the pedestal until the ward-chains finish sealing, or drives off the last intruder while the Codex stays in hand.

Lose

The Codex leaves the vault, is destroyed, or all exits are sealed while enemies still hold the pedestal.

If it goes badly: If forced back, the party can drop into the runoff channel and fight through the light spill to reach a service hatch.

Forces

  • 1 × Obsidian Tribunal InquisitorAC 6 · HP 110 · CR CR 6
  • 1 × Radiant SentinelAC 18 · HP 123 · CR 7

Rounds

  • 2Maltren’s agent lunges for the Codex and uses the confusion to grab it or shove it off the pedestal.
  • 3A shelf gives way. Creatures in or adjacent to Falling Stacks must move or be knocked prone by the collapse.
  • 4Ward-chains seal the exits in a ring of light.

Read aloud

Say this

The vault hums under your feet. A floating pedestal hangs over the Sunwell runoff, and the Codex sits in a ring of white fire. The ward-chains twitch, the shelves buckle, and the Obsidian Inquisitor steps in with a blade of black glass while the Radiant Sentinel locks the door with its body.

Forces

2

  • Obsidian Tribunal Inquisitor

    Controller

    1 of them
    AC
    6
    HP each
    110
    CR
    CR 6

    Null Verdict · Litigator's Eye · Oath of Disclosure

    Opens
    Open with Hold Person on the nearest frontliner, then Misty Step to the pedestal.
    Targets
    The strongest melee threat or anyone carrying the Codex.
    Flees
    If reduced below 15 HP or if the Codex is taken, retreat through the runoff channel.
    Open the monster

  • Radiant Sentinel

    Bruiser

    1 of them
    AC
    18
    HP each
    123
    CR
    7

    Magic Resistance · Halo of Disclosure · True Witness · Solar Renewal

    Opens
    Advance into the main lane and strike the nearest creature standing between it and the pedestal.
    Targets
    Anyone trying to grab the Codex or break the ward-chains.
    Flees
    Never flees unless the Inquisitor escapes.
    Open the monster

What happens

4-6 rounds
  1. 2

    Round 2, after the first creature drops below half HP

    Maltren’s agent lunges for the Codex and uses the confusion to grab it or shove it off the pedestal.

  2. 3

    Round 3

    A shelf gives way. Creatures in or adjacent to Falling Stacks must move or be knocked prone by the collapse.

  3. 4

    Round 4

    Ward-chains seal the exits in a ring of light. Leaving the vault now takes force, magic, or breaking a chain.

The battlefield

Zones

  1. 1

    Pedestal25x25

    Floating pedestal above the Sunwell runoff. Hard cover, open drop, drifting pages, and the codex is here.

  2. 2

    Falling Stacks25x25

    Three tall shelves are cracking and tilting. Moving through here costs extra movement and risks a collapse.

  3. 3

    Runoff Channel25x25

    A stone trough carries light like liquid. Bright glare, slick floor, and the ward-chains hang overhead.

What the party can use

Crack a support shelf to make a 10-ft line of difficult terrain and falling books
Shatter the radiant chains to blind a creature until end of its next turn
Dump the runoff channel to flood the floor with bright, slippery water

Scaling

XP budget5,200 of 39,000 XP
Weaker

Low

One fewer Obsidian Tribunal Inquisitor

Remove the Radiant Sentinel, or start the Inquisitor at half HP with one spell slot spent.
As written

Low

Stronger

Low

One more Radiant Sentinel

Add 1 d4 cult fanatics from a side aisle, or give the Inquisitor one free Misty Step and one extra 3rd-level slot.

Treasure

The Codex is the prize. If the party secures it intact, it may also carry a hidden leaf or keyed seal inside.

Media

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