From the introduction:
Monster hunt oneshot for Level 5, 11, & 17
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This adventure, Shadow of the Broodmother, is intended for 3 to 7 characters with an average party level (APL) of 5, 11, or 17. Characters who complete this adventure should earn enough experience to progress one quarter of the way to 6th level or one third of the way to 12th or 18th level. The adventurers must find and defeat the remnants of a rare swamp aboleth that has purportedly already been killed by a group of celebrated adventurers. After hunting for clues about this aberration, the adventure culminates in a three-wave boss battle. This battle is deadly and uses the party’s entire daily XP budget. A party well-equipped for an extended fight, as well as means of alleviating disease and mind control, will prove a great boon on this monster hunt.
User summary:
Intended as an introduction to Heliana's Guide to Monster Hunting