Mallory Cavan and the Madcap Museum Mystery - Black Sail Bay Mysteries, #1

Mallory Cavan wants two things in life: to be a starting forward for her favorite pro hockeyteam, and to get through middle school without having to talk to the Scott twins. Achieving onemeans having to sacrifice the other. When her K-9 officer father forgets to pick her and the Scott twins up from hockey camp oneday, they trip over a detail from a case he's investigating. The others think it connects back toan old town legend, so Mallory agrees to go hunt for the "rest" of the treasure.
Instead, Mallory and her teammates find enough trouble to threaten not only hockey camp buttheir entire year. It's up to Mallory and her dad's K-9 partner to get them out of it.