El asesinato del profesor de matemáticas

Adela, Luc, and Nico are the only three students who are going to fail math. Their teacher, Felipe Romero, is young, unconventional, and the best teacher in the school, but that doesn't help them connect with the numbers and equations they hate so much. When he offers them one last chance through a math scavenger hunt, the three desperately accept. But what begins as a game turns into a nightmare when they find their teacher gravely wounded by three gunshots. With his last bit of strength, Felipe entrusts them with an impossible mission: to solve his own murder through a series of logic problems and puzzles. They only have until six o'clock in the evening, and the killer could be watching them. Racing against the clock, the three friends must use their intelligence, teamwork, and the very subject they detest to unravel a life-or-death mystery. In this gripping novel by Jordi Sierra i Fabra, numbers become clues and equations the key to solving the most unexpected crime, demonstrating that true learning goes far beyond grades.