Did Zoe really poison her twin sister Chloe? What’s the best way to rescue a super-sized pig trapped in a deep, deep hole? And how can you stop a chilly ghost from wrecking a tree-house sleepover? Fifth-grade supersleuths (and science whizzes) Doyle and Fossey are about to find out—and young readers will love learning the solutions!

• The Case of the Gasping Garbage (Doyle and Fossey, Science Detectives)
• The Case of the Crooked Carnival (Doyle and Fossey, Science Detectives)
• The Case of the Mossy Lake Monster (Doyle and Fossey, Science Detectives)
• The Case of the Terrible T. rex (Doyle and Fossey, Science Detectives)
• The Case of the Graveyard Ghost (Doyle and Fossey, Science Detectives)