Book 112: "Dayworld" by Philip Jose Farmer

[kittiwake]

Today won't miss her. They'll think she's off on her own chase, if they think about her at all. Castor's kept them pretty busy. And what happens tomorrow? Will Snick appear at organics HQ with her visa and her orders from Sunday? No, she won't. So how will Friday know that she's supposed to appear? It won't, and the following days won't know about her, either. Nobody will know that she's missing until Sunday comes and she doesn't report to her superiors. Sunday can do nothing about it except to leave inquiries for the following days. When Sunday comes again, it will get the news that Snick disappeared on Thursday.

In a future where everyone is awake 1 day out of 7 and in suspended animation for the other 6 days, a few people illegally avoid suspended animation and live a different life on each day of the week. The original Tuesday identity of this novel's hero is Jeff Cairns, an organic (police officer), while on the other days he has different names, careers and even families. Everything is going smoothly until an insane man with a grudge against him becomes a daybreaker in his attempts to kill Jeff, which threatens to bring Jeff's illegal activities to the attention of the authorities.

I read and enjoyed this book a long time ago, so I was very happy when I saw a copy for 50p in a charity shop.