When Tobias and his friends were given the power to morph, they were also given a very important warning: Never stay in a morph for more than two hours. But Tobias broke the time limit, and now he's trapped in the body of a hawk -- forever. When he discovers an important Yeerk secret, Tobias knows he must do everything in his power to disrupt their plans. But to do so, he'll have to contend with a part of himself that's wrestling for control. A part that isn't human. For Tobias, the fight against the Yeerks is more pressing than ever -- not just for humankind, but for his own humanity.

V. 1.The invasion --