Replying...
Intro. In the midst of the growing threat of Lord Voldemort, Narcisa Malfoy, desperate for the fate of his son Draco, seeks help in Severus Snape. He knows that the mission entrusted to his son is a death sentence, and only Snape can guarantee his protection. However, Snape not only agrees to help Draco, but also imposes his own condition: to ensure the well -being of an orphan and prodigious student who has raised in secret. On a promise night sealed by magic, the fate of several is marked.

Unbreakable Oath

@La Vane