When Tom loses the love of his life, time travel seems like the only answer. . . what could possibly go wrong?

Elan Mastai’s breakthrough novel brings a whole new dimension to a classic love story.

‘Sharp, funny writing in a mind-bending, time-travelling junket of a novel’ Daily Mail

So, the thing is, I come from the world we were supposed to have.

That means nothing to you, obviously, because you live here, in the crappy world we do have.

But it never should’ve turned out like this. And it’s all my fault - well, me and to a lesser extent my father.

And, yeah, I guess a little bit Penelope.

In both worlds, she’s the love of my life. But only a single version of her can exist.

I have one impossible chance to fix history’s greatest mistake and save this broken world.

Except it means saving one Penelope and losing the other forever - and I have absolutely no idea which to choose…