As the PCs approach a door to the room, read this text:
If the PCs listen at the door, they hear nothing but the thunder that rolls twice every round as the trap inside the room activates.
In the room, a succubus confronts a hezrou. The two demons came to Undermountain by separate means and agreed to work together when they first met. They recently came to conflict after discovering a magic item hidden in the chamber beneath the statue. The succubus went below and found it, and now she claims it as her own -- a claim with which the hezrou disagrees. The two argue telepathically while circling one another. Both are wary of a conflict.
When the PCs enter, they see an elf woman (the succubus polymorphed so that she does not have wings) confronting the hezrou. Seeing the PCs as her means to winning the conflict, the succubus cries out to them in Common for help. The hezrou doesn't understand Common (it knows Abyssal, Celestial, and Draconic), but it rightly assumes the succubus has betrayed it, so it starts summoning another hezrou (35% chance of success) to help it attack both the succubus and the PCs.
Read the following to the players when the PCs enter:
Have the players roll initiative while you roll initiative for the hezrou and succubus separately. If you write initiative where the players can see, remember to write "elf woman" for the succubus. In addition to the creatures, roll initiative twice for the trap (+0 initiative modifier). If you write initiative where the players can see, don't write down the traps' activations until they take effect.
The fire on the ceiling is simply many continual flame spells.
Grim Statue Lightning Trap: CR 6; magical; location trigger; automatic reset (2 activations per round); spell effect (lightning bolt, 5th-level wizard, 5d6 electricity 2/round, Reflex DC 14 half); Search DC 0 (obvious); Disable Device DC impossible.
Twice per round on separate places in the initiative order, a bolt of lightning crackles from one of the statue's hands. The bolt works like a 100-foot line, but it affects any creature in the line, regardless of altitude, because the lightning bolt streaks up and down to strike creatures in its path. The trap uses the closest creature to determine the path of a bolt. Draw a line from the center of the statue through the center of the nearest creature and straight on after that. The lightning affects any creature in the line.
Both the succubus and hezrou are immune to electricity and understand this quality of the statue. The hezrou immediately uses the trap to its advantage against the PCs, while the succubus does so only if the PCs turn against her.
Assuming nothing disrupted its summoning attempt, another hezrou might appear on the hezrou's first turn. If you don't have another Hezrou miniature, you could instead use 4d10 Dretches (48/60) from the Dragoneye miniatures set.
The hezrou makes use of the trap as described above and employs chaos hammer and unholy blight against the PCs while it tries to engage the succubus in melee. Knowing the effects of the teleport cage (see Return to Undermountain: An Introduction) it does not use its teleport ability.
Succubus: Use the statistics from the Monster Manual (with an additional +3 armor bonus to the succubus's AC since she wears the treasure) and any female elf miniature you have (the Evermeet Wizard (15/60) from Archfiends is a good choice. If the succubus reveals her true form, replace the miniature with an Erinyes (33/60) from Archfiends and explain that she has bat wings rather than feathered wings.
The succubus hopes to have the PCs kill the hezrou. She has little chance of harming it herself (especially without claws in elf form), so she retreats from it and begs the PCs for a cold iron weapon. If they ask her how she came to be facing the creature, she bluffs that she is a wizard who ran out of spells elsewhere in the dungeon and attempted to teleport out, landing her in this room. If they ask why she isn't affected by the lightning, she bluffs that her bracers protect her.
If things go poorly for the succubus, she abandons pretenses and takes her true form. After flying to the top of the statue, she attempts to summon a vrock.
If things go well for the succubus, she continues her ruse, hoping to travel with the PCs and gain their trust. She takes whatever equipment they might give her (her tattered robes and the treasure are her only possessions) and strikes against the PCs when they least expect it.
Treasure: The succubus wears bracers of armor +3, which she found in the chamber beneath the statue. (See Secrets in the Room Summary sidebar and the Relevant Skill Checks sidebar for details.)
Adventure Hooks and Tie-Ins
Need more information? Check the Return to Undermountain: An Introduction for more details.
About the Author
Once editor-in-chief of Dragon Magazine and now a game designer at Wizards of the Coast, Matthew Sernett wrote in a Dragon editorial that there's nothing in D&D he likes better than when the adventurers flee through the dungeon, running pell-mell through traps and past monsters because what chases them is worse. When he wrote that, Matthew was thinking about Undermountain.
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