Williams, Mark London

Having traced a dimensional rift to Jerusalem in 583 B.C.E., DARPA sends thirteen-year-old Eli and his friends into the past to try to prevent the unraveling of history and the spread of the deadly slow pox.

George loses his tadpoles and learns all about the life cycle of frogs to find them.

Having traced a dimensional rift to Jerusalem in 583 B.C.E., DARPA sends thirteen-year-old Eli and his friends into the past to try to prevent the unraveling of history and the spread of the deadly slow pox.

When twelve-year-old Eli becomes involved with the time travel experiments that the government pressures his parents to pursue, he travels to fifth-century Alexandria, Egypt, where he meets Thea, a scholar accused of sorcery, and Clyne, an extraterrestrial saurian who is working on a homework assignment.

Twelve-year-old time traveler Eli Sands continues his search for his missing mom, encountering new characters and trying to save the free world from tyrannical rule.

Eli Sands, a normal twelve-year-old in 2019, is given the moniker "Danger Boy" after he participates in his scientist father's time sphere experiments and is sent back in time where he is joined by Thea, daughter of the last librarian in ancient Alexandria, and Clyne, a highly evolved alien dinosaur, in an attempt to save the world from a fatal disease that has slipped through time.

Time travelers Eli and Thea arrive in Missouri in 1804, where they meet Thomas Jefferson and other famous people, then Eli joins the Corps of Discovery, hoping to find Clyne so that the three friends can return to the Fifth Dimension.