The Secret of One Leg

Vacations at a sanatorium are boring, and if you are thirteen, they are unbearable! That’s what Lisa and Sonya thought until they discovered a trail. More precisely, a chain of footprints from a single leg. How is that possible? Is there really a ghost wandering around the sanatorium? Or is it a monster from the forest? The girls start their own investigation — building theories, gathering evidence, and step by step getting closer to the solution that has been right next to them all this time… Prepare yourselves: it will be funny and scary, but most importantly — not boring at all!