EU-PO? LY-PO? is the secret question that Melia and Myrto exchange with each other just before they fall asleep. Two little sisters living on an Aegean island in 1936 listen to their grandfather talk endlessly about his "ancients," eagerly await meeting their friends from the huts when summer comes, but above all, they are thrilled by the magical stories of the kaplani told by their cousin Nikos, a student from Athens. The kaplani, as it is called on the island, is a stuffed tiger locked inside the display case of the large living room, sometimes looking with its blue eye and sometimes with its black eye, depending on its mood. What happens on a hot August day that disrupts the lives of the girls and their loved ones?

Who might want to harm the kaplani?