From the front of the book:
Citizens of Hammergate are suffering sleepless nights, with visions of undead horrors invading their dreams. To one gnome, these nightmares have a special meaning. You must discover the secret of her visions or no one will ever sleep peacefully again. A Living Forgotten Realms adventure set in the East Rift for characters levels 11 - 14.
Note: This adventure takes place chronologically before EAST2-2 Sibilant Whispers and serves (in part) as a prequel to that adventure. The storylines are not directly connected, so the two adventures can be played in either order, but events that occur in this adventure do help explain some later events that occur in EAST2-2.