Bøger i Graysen Foxx, School Treasure serien

"Fifth-grader Graysen Foxx is on the hunt for the legendary treasure of Principal Redbeard--a collection of toys confiscated over the years--but he will have to beat his archnemesis, Raven Ransom, to the treasure in order to return the toys to their rightful owners"--

"While treasure-hunting, Graysen Foxx and his friends cross paths with a secret society of super-smart nerds called the Illuminerdy who will do anything to protect a bone-rattling secret"--