"Really big trouble" is an understatemant these days. The war between the Yeerks and the Animorphs is full on-and it's definetely going to get worse. But Cassie, thet other Animorphs, and Ax have a lot more going on than just trying to stay alive. Now They've got to actively protect their families and the free Hork-Bajir. And they no longer believe they can do it alone. The yeerks are just too powerfull. So, Cassie and the others have to ask themselves a very important question: Is it time to increase their nunbers? They all remember too well what happened with David-the animorph gone bad. But this time do they really have a choice?
