From publisher blurb:
Hunt the Serpent King. Claim the Crown.
High atop the deadly peaks of Mt. Kerrantan coils a legend older than empires; Engira, The Serpent King. Worshiped by serpents and feared by mortals, this ancient, magic-wielding predator has ruled the mountain for centuries with cold-blooded wisdom and lethal power.
Will your party brave his cursed domain for gold, glory, or vengeance? Escort a fanatic pilgrim, protect terrified villages, or take the crown for yourself—but beware: Engira does not strike first... but he always strikes last.
A deadly boss hunt for APL 7 adventurers, featuring:
Multiple quest hooks for diverse party types
Dangerous wilderness encounters and rival NPCs
A two-phase boss fight with lair actions and regional effects
A new magic item: The Serpent King's Crown