Detectives on a treasure hunt! During a detective mission on the beach, find Tiril and Oliver happen a strange, old plate buried far beneath the sand. It turns out that the plate belonged to the notorious pirate Thyme Blest, and then stolen a few days later, detectives understand that they are onto something big. Can thieves know where thyme Blest tax located? And what has the plate to do with this? This is a new case for Detective no. 2! Jørn Lier Horst and Hans Jørgen Sandnes' detective series has the fast established itself as one of the country's best-selling series for younger readers. Jørn Lier Horst writes exciting and realistic crime from the small town Elvestad. In the main roles we meet kids Tiril and Oliver - and dog Aatto - which collects evidence, looking for connections and takes up an occasionally dangerous hunt to expose criminals. Hans Jørgen Sandnes complements the stories with their colorful and detailed illustrations.