From the back of the book:
Since the destruction of Myth Drannor by the Netherese of Thultanthar, the elves of Cormanthyr have grown silent. The new First Lord of Hillsfar, Vuhm Yestral, has a tenuous hold on power and seeks to make allies of old enemies while exploiting the nearby forest resources. Heroes are needed to carry the First Lord's message into the Forest of Cormanthor and explore ruined Myth Drannor!
Within you will find updates to the current state of the City of Hillsfar following choices made by D&D Adventurers League players during season three (Rage of Demons) and six new adventures legal for D&D Adventurers League play with characters levels 1st - 20th. Face fearsome foes, explore forbidding ruins in ancient forests, and find out what has become of Myth Drannor!
Chapter 1: Lost Tales for Adventurers League
Chapter 2: The Current State of Hillsfar
Chapter 3: The Elves of Cormanthyr
Chapter 4: The Darkwood Webs
Chapter 5: The Weirding Vats
Chapter 6: Spawn of the Maimed Virulence
Chapter 7: Echoes of the Weeping War
Chapter 8: Forgotten Foes
Chapter 9: The Definition of Heroism