On a train to Cardiff, Colin's Monday takes a sharp detour into the absurd when he slips into a parallel timeline.

He becomes an unwitting guinea pig in a bold new experiment to appraise sin in real time, rather than wait for Judgement Day.

Seven days. Seven sins. Everyone knows how it works.

But here there are eight of each—leaving Colin caught in a day that doesn't really exist and facing a sin no one remembers, while heaven struggles to make sense of an impossible mistake.

What do you do when the error is you?

The Eighth Day is a witty, thought-provoking standalone novella and the perfect introduction to the 7 Days series—where each day tests a character against one of the seven deadly sins. Humour, hope and surprising twists combine as ordinary people question their beliefs, rediscover forgotten virtues and realise one simple truth: like it or not, we're all in this together.

Includes the opening chapters of Tuesday, the first novel in the series.