At fifteen, can you be a lonely island, a free electron? Can you fully control your own life, free from relationships and dependencies?
Marika knows how to disappear from the radar of parents, teachers, and classmates. She carries a secret that gives her breathing space from her gray everyday life. But secrets have this peculiar trait—sooner or later, they usually come to light. And when they do, you might lose much more than just your peace of mind.
The Thief is a story about pressure, friendship, first love, and choices that hurt. It's about how easy it is to cross a line... and how hard it is to turn back.

"I promise to stop complaining about Polish young adult literature if all books are as good as The Thief by Katarzyna Wasilkowska. If I had to choose my book of the year right now, this would be it (...)"
—From a review by Biserka Čejović for the KSIĄŻKI Reading Magazine