Meanwhile on Earth, Arthur discovers that the national army plans to fire a nuclear bomb on his hometown, so he uses the fifth Key to stop time.

He learns that Saturday has deliberately destroyed the lower parts of the House so that the growth of the enormous trees that support Sunday's realm will slow, allowing her to invade from below.

Arthur convinces his steward Dame Primus to split herself in two, to take care of the House while he seizes the last Keys from Saturday and Sunday.

Arthur discovers that the sixth part of the 'Will' is hidden in the rain, and manages to reconstitute it, but then he is separated from Suzy by Saturday's troops.

The book ends back on Earth with Arthur's friend Leaf getting as many people as possible into a bomb shelter together with a hospital staff member.