The Cocoa War — Brad Blake

An action-packed sequel to Citlalli and the Destroyer, The Cocoa War doesn't let up for a minute as the seven thirteen-year-old "Blue Third" heroes are caught in the crossfire of an epic battle for Earth and Mars. Having defeated the Destroyer and saved Earth from certain doom, the kids are swept up by events and plunged ever deeper into their intergalactic adventure. Picking up where the first book ended, evil Doozies arrive intent on owning cocoa and Earth. Battles, chases and rescues ensue against monsters, alien armies and impossible odds. Along the way, Citlalli discovers time travelling and risks everything to return to her family 5,000 years into the past. Meanwhile, Fiberians are preparing Mars for colonization and human habitation, leading to all out war, with familiar friends like Sklizz, Einlen, and Thrix. Mars, Earth and the enslavement of humanity are at stake. There's never a dull moment-and Blake has readers riveted until the very end.