The Body Finder Series by Kimberly Derting
The murdered victims leave behind echoes, each one distinctive, and the murderer leaves identical imprints. Violet can sense these traces when she’s nearby.
Dreamfall Duology by Amy Plum
When an experiment goes wrong, 7 test subjects are stuck in nightmare dreams & if they die in there, they die for real. Amongst them, there’s a psychopath.