Andrew Larson is a fifth-year student in Ravenclaw. He and his roommate Amit are both interested in astronomy. At the same time, he is gentle, but not too introverted. His curiosity always prompts him to play with some Gryffindors. Like most boys in Hogwarts, Andrew has an ordinary school life.Sometimes, he thought he would continue to spend the last three years of campus life happily and peacefully, then graduate and enter the society. But this night, after the stargazing class, he did not stay in the astronomy tower, but stretched and planned to take a walk to a place he did not often go.

And this decision changed his life

Andrew walked in the quiet corridor. The road went straight down. The scenery ahead was a little strange. He was sure he had never been there before. It was not too late, but if he counted the way back to the Ravenclaw dormitory, he might miss the curfew. He was hesitating, but he seemed to hear some small sounds.

Like someone moving? Deep in that dark tunnel? Maybe just a lost rat, but...

"Lumos."

Andrew thought hard and lit up the wand in his hand. When the light flashed, the sound stopped abruptly. His heart was pounding, and then he decided to go deeper. After walking for an unknown amount of time, he didn't know what kept him going. When he wanted to turn back, he saw the dungeon at the end of the corridor and you in the dungeon.