"You kids think you're so smart, don't you?" he snarled. "Well, I'm going to leave you locked in this room. The Great Mind will take you all behind that whiteboard. And Miss Hayoung with you! The Great Mind wants knowledge because knowledge is power. Nobody can stopmthe Great Mind! And if anybody ever asks me what happened to all of you, I'll say I heard screams and came up here, but found the room is empty!" "You were very clever, Inseung" U-Kwon laughed. "You pretended to be the superstitious old caretaker, talking about mysterious disappearances, so everybody would think you were a bit crazy. That's why nobody suspected you. Bit all the time you were part of the plan. In fact, Inseung, I've just worked out something else. There is no Great Mind behind the board. YOU are The Great Mind!" Inseung's face was contorted with rage and hatred. And then it stopped being a face. It became a swirling mass of flesh and blood. Our screams rose as his hulking body ceased to be human. It became a shimmering mist, an ugly, distorted shape that grew bigger and bigger. He plunged across the room and the whiteboard rippled as he passed through to the other side. U-Kwon leapt forward and hurled the broken marker pen after him. "Now," he said. "Nobody can be taken to the other side again!" And the whiteboard stopped rippling. It became a plain, ordinary board again and the only sound left in the classroom 44 was of our breathing. We stared at the board, the gateway to the other world, and as we did, Miss Wydre's final message appeared: YOU ARE SAFE