Aventura en la montaña rusa (¡Resuelve el misterio!, 8)

Finally, Carlos, Eliza, and Frank have a day off to have fun without investigating any cases! Or maybe not… What promised to be a day of maximum fun at an amusement park turns into a race against time when someone threatens to sabotage the rides and endanger the lives of park visitors if the director doesn't pay them fifty million dollars before the day is over. Who could be responsible for this ultimatum? And why are they putting one of the coolest places in the world at risk? Only you can help the detectives at the Clues agency solve this case. Will you lend them a hand?