Five years have passed since Will learned Mary's secret, and he is now 13. His undead parents' lessons grow ever more difficult, but Will manages to stick to it. One day, Blood gives him an assignment requiring him to escape from the ruins in the city. Will desperately tries to fight his way out, but an odd sensation of malice stops him. It turns out that malice was coming from an unexpected source.
Gus's lessons became more difficult,
،أصبحت دروس غاس أكثر صعوبة
Gus’ Unterricht wurde immer schwieriger
Las clases de Gus se volvieron
más complicadas y más densas.
Las clases de Gus se volvieron
más complicadas y más densas.
Les cours de Gus sont de plus en plus
difficiles et denses.
Il contenuto delle lezioni di Gus 
si è fatto più complesso
As aulas do Gus ficaram mais difíceis
Уроки Гуса становились всё сложнее,