House of Mallory:

This is a jukebox musical style book.

24 people all attend a party at one of the four college houses. 23 walk out alive, many secrets are revealed as we follow the students in the houses of Mallory, Malfoy, Hargreaves and Harrington. All of them are suspects.

The interrogation rooms are packed full of people and musical numbers, as we got closer and closer to finding out who did it.