The Other Side of the Mirror. Detective Duarte Mysteries, #1

The case: a grandmother who vanished from a locked room. The best lead: a psychic who's as mysterious as she is cute. Detective Jack Duarte is the one called upon when weird cases hit Auckland. A fierce loner with a reputation for solving the unsolvable, she is the perfect choice for the latest odd mystery: the locked-room disappearance of a beloved grandmother, who has vanished without trace and, seemingly, without suspects or a motive.
This time around, though, Jack has also been assigned a partner. The fresh young detective Piper, who has transferred in with a difficult history, is determined to prove themself. Smart, perky, and inexperienced. They are exactly the kind of partner Jack manages to scare away. As they dig deeper into the mystery, though, Jack has to put her own reluctance in the back seat and help Piper navigate a whole different world - because the beloved grandmother has her own mysterious past, one that has already cost lives.
and souls. With the help of the enigmatic and beautiful psychic Emmaline, Jack and Piper must confront the strange world on the other side of the mirror. Some mysteries can only be solved with magic!