Keeping Secrets — David A. Crossman / D.A. Crossman

This summer, Bean and Ab's adventures began with a riddle: Where was Minerva Webster buried? Once the town's richest, most eccentric citizen, there was no trace of her to be found in any of the island's cemeteries. It soon becomes apparent that somebody doesn't want them stirring the ashes of the past, and there are secrets some people will do anything to keep.