In fact, aside from her robotic coldness, quiet demeanour, and artificial speech pattern, you be forgiven for thinking that Becks was (an unnaturally beautiful, which she capitalizes on at more than one point) human woman. The second, a female called Becks, is much more slender, but muscled like a gymnast.The first we meet, a male, is frequently described as 'an ox of a man', and before being named Bob Maddy wanted to name him after Arnold Schwarzenegger for a reason.There are only two problems they can't easily gauge emotional inflections like sarcasm, and they find it confusing and problematic to make a decision. They are flesh-and-bone rather than metal simply because it is better at learning and better at repairing itself on the field (flesh heals better than steel, at any rate).

Aside from being seven feet tall and laden with more muscles than is strictly fair, they go from completely bald (after 'birth') to having fairly ordinary dark hair and grey eyes. They also have an incredibly powerful supercomputer hooked up to it. They are grown from cloned tissue, deliberately given the appropriate genetic makeup for up to 700% human strength, superior speed and reflexes. Artificial Human: The support units - robots created in the future that are almost exactly like humans.

It messes up your mind if you get stuck there, tricking you into believing you have spent millenia in a place without anything to see, hear, or feel.

Alternate Self: Foster looks to be one for Liam, until City of Shadows when the team finds out that they are all support units and Liam and Foster are separate Liam units.

Dealing with figuring out the Agency's secrets proves to be even worse for them than the much older Foster, who is already angsty enough as things are.

Age-Appropriate Angst: Maddy, Sal and Liam are all just teenagers, a valid reason for all of them being driven to tears at least once over the course of the series.TimeRiders: The Infinity Cage (November 2014).TimeRiders: The Mayan Prophecy (August 2013).TimeRiders: The Pirate Kings (February 2013).TimeRiders: City of Shadows (August 2012).

TimeRiders: Gates of Rome (February 2012).

TimeRiders: The Eternal War (July 2011).

TimeRiders: The Doomsday Code (February 2011).

TimeRiders: Day of the Predator (August 2010).

Eventually, the trio discovers that the agency has far more secrets hidden away than they had originally thought. Three teenagers find themselves saved moments before death by a mysterious agency, who recruit them to travel through time to correct errors in history caused by tampering time travelers from the future. Time Riders is a series of nine Young Adult science-fiction novels by Alex Scarrow.

Timeriders the doomsday code