Alternative title: Tobias is Not OK. Another extremely well-written, gut-punching character story with an otherwise uninteresting plot to keep it chugging along.
The Test reveals that Tobias is still basically shattered from his torture at the hands of the sadistic, and possibly mad, Yeerk Taylor. While the rest of the Animorphs have been dealing with their own shit, apparently, for the last ten books, Tobias has been keeping it together around them…