The final instalment in the internationally bestselling Delirium trilogy.

It is the rule of the Wilds:

You must be bigger, and stronger, and tougher.

A coldness radiates through me, a solid wall that is growing, piece by piece, in my chest. He doesn't love me?

He never loved me.

It was all a lie.

'The old Lena is dead', I say, and then push past him. Each step is more difficult than the last; the heaviness fills me and turns my limbs to stone.

You must hurt, or be hurt.

Lena can build the walls, but what if there's no one left to take them down? The powerful, heartbreaking conclusion to one of the most eagerly awaited, talked-about series is here.