Every night at 3:33 a.m., someone disappears from the small town of Meru Hollow?vanishing without a trace, and worse, without memory. No one remembers the missing. It's as if they never existed.

Except for Elena Reyes.

A grieving mother who refuses to forget her lost daughter, Elena, begins leaving messages for the missing in her dreams. Against all logic?and all odds?they begin to respond.

As Elena delves deeper into the dream world, she discovers a world haunted by evil forces that feed on forgotten souls. With every letter she writes, she risks her memory?and her soul. But with the help of those in the dream and a growing resistance, Elena fights to recover the names and stories erased from the waking world.

As time passes and the boundaries between dreams and reality crumble, Elena must face an impossible choice: save herself, or become the last guardian of those no one else remembers.