What is Chasing Vermeer about?

Chasing Vermeer is about when a painting by Vermeer is stolen and 2 kids (Calder and Petra) attempt to get it back. Clues from their neighbor Mrs. Sharpe and their teacher Ms. Hussey receive 2 letters from the culprit. Also read the book. The first 5 chapters are pretty boring but if you ready the end it is pretty exciting when the culprit is revealed.