Useless
Summary
Nico di Angelo was eight when his mother died. His older sister, Bianca, was Twelve. Shortly after Maria's death, Hades put both Bianca and Nico into an Orphanage. The orphanage was Wool's Orphanage, and there Nico met Tom Riddle. A short HP/PJO crossover going into a bit more depth about Nico di Angelo's childhood and the reason Tom Riddle thinks friendship is useless.