The book is called Infinity Ring and I am up to the third book out of 8. There are all different authors of these books. My favourite book out the series is number two when they travel to the war of the Vikings and the french.
These books are about going back in time and saving these breaks of war, also there team in called the historians, there enemy is the SQ. If they fix the berks they save the future from disaster.
This is the book i'm up to right now.
