In which Alastor not-yet-"Mad-Eye"-but-still-quite-Mad Moody does as Alastor "just Mad" Moody does, and brings a sneakoscope to an Order meeting. (The kind of fix-it that makes so much sense that the fact that it isn't canon should be considered a plot hole in itself)
Remus realizes over the course of a weekend that: Harry's Patronus is quite literally Prongs, Peter is alive, Sirius is innocent, Harry needs to be re-homed, and Remus really has his work cut out for him. Featuring: a devious matchmaking house elf, a ton of magical law and bureaucracy, an accidental marriage, a shockingly easy horcrux hunt, and a wolfstar slow burn.
"If you called us all over here to poison us, you know that means we can't keep you company while you're in hiding?" "Even better!" Lily declared. "I have spent the last three months developing a semi-safe alternative to Veritaserum and you are about to witness a live demonstration." "Semi-safe?" echoed Remus. "Veritaserum?" squeaked Peter. "Wicked," breathed Sirius.
Severus doesn't understand how Sirius Black could have turned traitor for the Dark Lord. He definitely doesn't understand how he could have betrayed James Potter, of all people. And, oddly enough, he doesn't understand why Black's laugh looks so strange in his mugshot.
Remus casts the Patronus during Harry's first quidditch match. Padfoot realizes he doesn't have to go it alone. Minerva realizes there's a rat in her House. Ron realizes that his rat isn't one.
Severus will make Harry Potter into the proudest Slytherin of his age, and then he will go to Godric's Hollow and laugh about it on James Potter's grave. PS rewrite Endgame: Severitus
Harry's mis-pronounced floo destination sends him not to Knockturn Alley but to Dragon Valley, where a certain old family friend happens to recognize him. All Remus intends to do is to return Harry to the care of the Weasleys; instead, he finds himself in increasingly stranger situations and ultimately forced to confront a past he may have Siriusly misunderstood.