After the Battle of Hogwarts, Headmistress McGonagall needs new teachers. She looks to an old friend for some help.
Before Reyna could land on the Argo II, the Seven and Nico enjoyed a fun trip to the past. This trip included secrets of the Pit, family bickering, and a prank or two. They are sent back in time to the end of the Last Olympian after all the Heroes had left back to Camp Half-Blood. This is a reading the House of Hades fanfiction.
When Fury gets a package he uses it to find out if he and the Avengers could use more help. They read books.