The Blackthorn Key

Waiting in the grass, Christopher wonders about Bridget, whom he has not seen for two days. He hears the sound of wings and knows his plan is in motion. Oswyn comes out of the maze, telling Christopher everyone has been searching for him. He admits that he has been to Mortimer House before but not the garden. He says that someone broke his office lock, and Christopher admits that he did it. 

Then, Oswyn holds up the message Christopher sent him: It states that he is not associated with the Cult and is innocent of murder—and that he has also made an important discovery. Christopher admits that he found the Fire, claiming that the recipe was in the puzzle cube, and offers to show it to Oswyn. Oswyn asks why Christopher thought he would want it, then laughs at the idea that he would be eager for the recipe. He mocks Christopher for trying to get him to confess to wanting the Fire and for murdering Master Benedict: "You're trying to play the game, but you don't even know how to move the pieces" (320). 

Oswyn admits that he killed Master Benedict, Stubb, and the others through agents he sent out.