In The Time Warp Trio Series Joe, Sam, and Fred are three best friends that use a magical book in order to travel through time. The Book was given to Joe on his birthday by his Uncle Joe a traveling magician. It also came with a warning to "be careful what you wish for you might just get it." In the first two books we see them sent back in time to the Knights of the Round Table as well as Black Beard and his Pirate Crew. The Trio will have to think fast in order to navigate these places and come back from the past with their lives and the future intact.
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