The fabulous foursome readers embraced as The Mysterious Benedict Society is back with a new mission: to go on a mind-bending international scavenger hunt designed to engage their individual talents. As they search for all the clues and riddles Mr. Benedict has hidden for them, Reynie, Sticky, Kate, and Constance face an unexpected challenge that will reinforce the reasons they were brought together in the first place and require them to fight for the very namesake that united them.