Lov za templjarskim zakladom

Marko is looking forward to a holiday by the sea and when his parents tell him that the holiday may not happen because they cannot afford it, he is very disappointed. To make things worse, a family friend and her daughter Nika comes to visit. What is Marko supposed to do the whole summer with his troublesome younger brother and a girl? This will be the most exciting and thrilling holiday of his life. And he, Nika and Blaž, together with Pika the crow, will solve the mysterious case of the disappearance of two people and find something that has been talked about for centuries.