The Shape Detective Agency

Agata, Sherlock, Pero, and Einstein are a team of clever detectives solving mysteries together. While the adults run the agency full-time, Einstein still has to juggle school—and a brand-new classmate, Žanet Kvakar, who soon becomes his friend. But when their new neighbor, Dr. Kvakar, receives a terrifying package containing a skeleton covered in what looks like blood, the agency takes on a chilling case. Is it real? And who is behind the threat? A playful, suspenseful mystery full of friendship, humor, and surprising clues.