From publisher blurb:
5th Edition Mini-Dungeon for four to five characters of levels 18-20
The module begins in a great city, such as planar Elemenopolis.
On crossing a marketplace, a sandy-haired outcrier catches your ear; “Faerie War Arrows Hit Death!” He is handing out printed sheets. Spotting you, he approaches; “Friends, this may interest those seeking intrigue!”
The human-looking hawker is Embirikos, an androsphinx. He hands them a sheet from the back of his stack. Embirikos seeks to use the party to intervene in a conflict between shadow fey and fiends. When read, the keysheets teleports the party to a planar conflux beneath the city. If assailed, Embirikos uses his Teleport legendary action, targets keysheet carriers with three Roars, and then leaves the area. The keysheet reads:
“Award Faerie’s arrow the hit!
The heated warrior was fair.
Area drifters who hear, wait;
If warier, others award hate!
With Death, worries are afar.”
For one “to free” five – Embirikos