The 11th and 12th titles in this gripping, dramatic and completely engrossing series - designed to engage reluctant readers (high interest, low-level reading), and anyone interested in battles, history, time travel, adventure, great stories, gadgets galore... Mission 11: Super Soldier -Book no. 66: Battle of Thermopylae, 380 BC. Persian King Xerxes I fights Greek forces led by the Spartans -Mission objective: Professor Perdu wants to try out her latest creation - the 2.2 metre tall super soldier, Tex. However, an accident in the Tome Tower means that a Battle Book has been sucked into another Battle Book! Together, BB005 and Tex must retrieve the missing Battle Book, before it falls into the wrong hands!