The Old Town Detectives. Letters Written in Blood

Rebeka and Gregor have a new case to solve: are the flats in the Old Town really haunted, or is there a simpler explanation? As they investigate, Rebeka comes face to face with the spirit of a girl from long ago — and finds herself drawn into her story.

Lota turns out to be an unexpected ally, and Gregor has to admit, at last, that she is actually quite likeable. As for Kaspar, he surprises everyone by reinventing himself as a bit of a hipster.

Letters Written in Blood is the second book in the Old Town Detectives series.