3:59 by Gretchen McNeil

Synopsis:
Josie Byrne's life is spiraling out of control. Her parents are divorcing, her boyfriend Nick has grown distant, and her physics teacher has it in for her. When she's betrayed by the two people she trusts most, Josie thinks things can't get worse.

Until she starts having dreams about a girl named Jo. Every night at the same time—3:59 a.m.

Jo's life is everything Josie wants: she's popular, her parents are happily married, and Nick adores her. It all seems real, but they're just dreams, right? Josie thinks so, until she wakes one night to a shadowy image of herself in the bedroom mirror – Jo. 

Josie and Jo realize that they are doppelgängers living in parallel universes that overlap every twelve hours at exactly 3:59. Fascinated by Jo's perfect world, Josie jumps at the chance to jump through the portal and switch places for a day.

But Jo’s world is far from perfect. Not only is Nick not Jo's boyfriend, he hates her. Jo's mom is missing, possibly insane. And at night, shadowy creatures feed on human flesh.

By the end of the day, Josie is desperate to return to her own life. But there’s a problem: Jo has sealed the portal, trapping Josie in this dangerous world. Can she figure out a way home before it’s too late?

From master of suspense Gretchen McNeil comes a riveting and deliciously eerie story about the lives we wish we had – and how they just might kill you.

Okay this book slightly reminded me of Undercurrent by Paul Blackwell. When I say that I don't mean they are alike these books are completely different but they have a similar idea in a way I guess I don't know. Reading the synopsis of this book you would make you think you could skip reading the book and you would get the whole thing. Ehh you would probably get most of it. You wouldn't get how it unfolds though and get to see the surprises and turns that happen which end up pretty cool.Okay some books have other books to them like in a series and sometimes you think why? They should have left it at the first book! This book though stands alone it is not part of a series, but I really wish it was cause I felt like there could be so much more that it could find out what happens later on. I really do wish there was a second book but having this book all by itself kind of makes it great when you get towards the end.Now im not going to say this book was one of my favorites because it wasn't but I really enjoyed reading it and thinking: "how in the world is this going to work out in the end, everything is such a mess." Good book I really liked reading here :D