Quidditch World Cup

Alecto would be attending her 5th year at Hogwarts where Severus is willing to fix their relationship and build it up after her fourth year.
The Triwizard tournament will also be at Hogwarts this year and what happens when darkness rises once again and the dark secrets of Alecto's true self are revealed.

[I suggest you read the first book before reading this one]

Disclaimer- All the characters and main Harry Potter story belongs to J.K Rowling!