Making current scientific findings understandable to kids and teens and getting them excited about science is the aim of the open-access science journal „Frontiers of Young Minds“. In our paper „The fungus among us: Why the treatment of fungal infections is so problematic“, we present to the young audience the most important systemic fungal infections in humans and describe the challenges in their treatment. The article is a part of the thematic collection "How to fight harmful microbial bugs and superbugs?", now available as an e-book.