The Trail of the Screaming Teenager — Patricia Reilly Giff

Help! Someone's a thief.

It's a hot summer day at the beach. The sand is crammed with bodies. Arno the killer kindergarten kid is building an apartment complex on his mother's feet. Somewhere a teenager is screaming. Who has stolen Gladys-Mindy's almost-diamond necklace with the two almost-ruby hearts? She's offering a reward to whoever finds the thief.

Dawn Bosco, the Polka Dot Private Eye, is soon on the trail. But Arno keeps tripping her up. Will she solve her hottest case yet?