Eight Days of Luke

A fantasy/mystery novel by Diana Wynne Jones. David, forced to spend his school vacation with his guardians, who he dislikes, accidentally releases Luke from prison, and then has to protect him from Luke's family, who are after him to give back something he stole.

Tropes featured include:


 * Defrosting Ice Queen: Astrid dislikes David's family just as much as he does, and when they realize this they start to get along a lot better.
 * Evil Uncle: It turns out David's uncle and cousin have been stealing money that was rightfully David's and using it for their own illegal purposes.
 * Getting Crap Past the Radar:
 * Just Whistle: Luke appears when David strikes a match.
 * Locked Out of the Loop: David can only find what Luke stole if he doesn't know what it is.
 * Meaningful Name:
 * Pals with Jesus: Pals with rather.
 * Parental Abandonment: David's parents are dead and his guardians are spiteful and neglectful.
 * The Trickster: Luke.
 * The Trickster: Luke.
 * The Trickster: Luke.