The semester ends in less than twenty-four hours, and Miles still hasn't finished his final for the Old Man.
He comes back after his precalc test and notices a letter to him and the Colonel from Takumi.
In the letter, Takumi says that he saw Alaska on the night of her death; she told him that she needed to put flowers on her mother's grave and that she forgot. He says that he thought she was just looking for flowers; he admits that he let her go too.
Miles runs to Takumi's room to tell him he forgives him, but Takumi is gone; Miles realizes that "we had to forgive to survive in the labyrinth" (136after.9).
Miles also realizes that even though he doesn't know Alaska's last moments and thoughts, the not-knowing won't stop him from caring.
The Colonel isn't back in their room yet, so Miles sits down to write his final for the Old Man. In the final, he writes about several realizations:
He first thought that the way out of the labyrinth was to ignore it.
He still believes in a Great Perhaps.
He will forget Alaska, and she will forgive him for it.
He thought she was just dead, but now thinks that part of her "cannot be destroyed" (122after.16).
He wishes he could have given Alaska hope so she didn't commit suicide.
He forgives Alaska, he knows she will forgive him, and he hopes it's beautiful where she is.