Two Calders are missing. One is a boy. One is a sculpture. 

When calder Pillay travles with his father to a remote village in England, he finds a mix of mazes and mystery. . . including an unexpected Alexander Calder sculpture in the town square. Calder is strangely drawn to the sculpture, while other people have less then friendly feelings towards it, Both the boy and the sculpture seem out of place...and then, one the same night, they disappear!

The Calder Game by Blue Balliett