The Bone Magician:

The Bone Magician by: F.E.Higgins
Fiction: YA, Historic, Mystery
Audio Book

This book takes place at the same time as the author's other work and so you can read this or the other book first.  In this story Pin gets a job as a corpse watcher which is someone that professionally sits up all night with a corpse until they get buried a few days after death. (As it takes place in a time when wakes were done in case the "corpse" does wake from a deep coma and isn't really dead.)  One night when watching a body, he is drugged and sees an old man, a girl around his age, and a man that knew the dead person sneak into the room.  Then they preform a ceremony and the dead body sits up and talks for a short time.   Shortly after this event, he gets kicked of the room he was renting and ends up rooming in the same house as the girl from the ceremony that "raised" the dead. 
Meanwhile there is a killer in the city that puts a golden apple in the pocket of all the people he killed.  Many people think it is Pin's dad as he is on the run after being accused of killing his brother-in-law.  Pin knows that his dad isn't the killer and so he and friends that he picks up on the way work to solve the mystery of who the murder is to clear his father's name of these crimes.  Also Pin is trying to find out how the bone magic of raising the dead works.