Books in the Last Timekeepers series

When 13-year-old Amanda Sault and her annoying classmates are caught in a food fight at school, theyre given a choice: suspension or yard duty. The decision is a no-brainer. Their two-week crash course in landscaping leads to the discovery of a weathered stone arch in the overgrown back yard. The arch isnt a forgotten lawn ornament but an ancient time portal from the lost continent of Atlantis. Chosen by an Atlantean Magus to be Timekeepers--legendary time travelers sworn to keep history safe from the evil Belial--Amanda and her classmates are sent on an adventure of a lifetime. Can they find the young Robin Hood and his merry band of teens? If they dont, history itself may be turned upside down.

Fourteen year-old Jordan Jensen always considered himself a team player on and off the field, until the second Timekeeper mission lands him in Amsterdam during World War Two. Pulled into the world of espionage, torture, and intolerance, Jordan and the rest of the Timekeepers have no choice but to stay one step ahead of the Nazis in order to find and protect a mysterious book.With the help of the Dutch Resistance, an eccentric baron, Nordic runes, and an ancient volume originating from Atlantis, Jordan must learn that it takes true teamwork, trust, and sacrifice to keep time safe from the evils of fascism. Can Jordan find the hero within to conquer the darkness surrounding the Timekeepers? If he doesn't, then the terrible truth of what the Nazis did might never see the light of day.