Others lost, like me in the black water. Save them!"When Alexander first sees the eerie glow in the dormer window of the barn, it sets his heart pounding. And when he ventures into the barn in the dark of night, his breath catches in his throat. Suddenly Blossom Culp's words come back to him: "You can make contact with the Unseen...." Now there's a girl ghost standing right in front of him, telling him of great danger ahead. But is there time for Alexander to act on her warning?

    (And you, dear reader, can test your wits right alongside them.) But in the end just four very special children will succeed. Their challenge: to go on a secret mission that only the most intelligent and resourceful children could complete. To accomplish it they will have to go undercover at the Learning Institute for the Very Enlightened, where the only rule is that there are no rules. As our heroes face physical and mental trials beyond their wildest imaginations, they have no choice but to turn to each other for support. But with their newfound friendship at stake, will they be able to pass the most important test of all?This tenth anniversary edition of The Mysterious Benedict Society includes over thirty pages of bonus materials that will delight old and new fans alike.