When Denae speaks to SSA Jacinda Hollingsworth about Emma appearing to her and calling out to her as she was dying. When Emma is questioned about this, she has to reveal her secret about her ability to see ghosts and speak with them. Jacinda is willing to keep an open mind but Vance totally does not believe this and constantly is ridiculing Emma. Then they receive a new case where someone seems to be murdering members from various gangs, removing their gang tattoo, putting a dead cockroach in a pocket, and leaving the bodies at police/FBI headquarters, then finally one is left at Emma's doorstep, and it becomes personal when she realizes that her supposedly "sister" is involved with these murders. It is a turn pager and leaves you wanting the next book QUICKLY!!