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.
Still, Mary and Gus were 
nothing compared to...
...رغم ذلك، ماري وغاس كانا لا يُقارنان بـ
Aber es gab noch jemanden,
der viel strenger als Mary oder Gus war.
En comparación, las lecciones
de Mary y Gus eran aceptables.
En comparación, las lecciones
de Mary y Gus eran aceptables.
Toutefois, les leçons de Marie et de Gus
n’étaient pas les pires.
Ma nonostante questo,
Ainda assim, com Mary e Gus as coisas
eram até tranquilas se comparadas ao...
И всё же уроки Мари и Гуса
ни в какое сравнение не шли...