Glitch is an enemies to friends and a kind of boring historical fiction novel by Laura Martin. This book is about two enemies, Elliot and Regan. They both live at a glitching academy on a remote island in the USA. The glitch academy produces glitchers who go back into time to keep history on its right tracks. Elliot and Regan are put into a different part of the academy and are taught how to glitch in unexpected times and how to capture the butterfly or the person trying to change history. They end up saving the academy after it is destroyed. I love the end of the book when everything is happening, they almost escape prison and save the academy, but I thought the beginning was very slow, and it was boring to read at that part. I recommend this book to anyone who likes history, time travel, and enemies to friends. That is why I rate Glitch a 2/5.