Room meets Lord of the Flies, The Bunker Diary is award-winning, young adult writer Kevin Brooks's pulse-pounding exploration of what happens when your worst nightmare comes true - and how will you survive?

I can't believe I fell for it.

It was still dark when I woke up this morning.

As soon as my eyes opened I knew where I was.

A low-ceilinged rectangular building made entirely of whitewashed concrete.

There are six little rooms along the main corridor.

There are no windows. No doors. The lift is the only way in or out.

What's he going to do to me?

What am I going to do?

If I'm right, the lift will come down in five minutes.

It did. Only this time it wasn't empty . . .