Nick Hornby's High Fidelity is about love, relationships and the redemptive qualities of music. This book, described as High Fidelity plus Time Travel, falls far short.

In many sci-fi novels, suspension of disbelief is a key. It can't be suspended far enough here - cell towers in 10th century North America, the time traveler can/can not affect the past (hint - the answer is both, without explanation), and finally finding out that time travel is powered by love (maybe?). Bah!

The male main character, Karl Bender, is inconsistent at best - but asshole is the better description. The woman he "hired" to help him is also the love interest - but they have no chemistry. I can say that Lena is a strong female character, but she lacks scientific ethics. And what was the point of Milo's recurrence?

Finally, the premise is good - a time traveling wormhole that can take you to any concert. Taking away stars for the flaws doesn't leave much that I can draw from this book. Sorry Mo.