Starting here and ending in chapter 21 there's some mild misgendering during Remus' chapters.
Despite the pile of ungraded essays back on his desk Remus follows the students out to Hogsmeade on Saturday. He's in a good mood; the sun is shining, there's another two weeks until the next full moon, Harry is a miracle child and doesn't hate him (yet), and there's a sale on at Honeydukes.
It has the potential to be as close to a perfect day as he gets these days and then he sees the dog.
He sees Padfoot.
Now, this isn't the first time this has happened. All through the past decade and change Remus had seen shadows of his dead or lost friends in people walking past, in movements in the trees, in sudden smells or just a friendly face. He sees them everywhere, and he'd gotten used to it with James, Lily and Peter, the reminders of Black had tapered off after the first year; his stubborn brain finally realising that it only made everything worse in a way a visit to a graveyard couldn't pave over.
And then he'd escaped Azkaban. And now Remus saw him everywhere.
But this wasn't like that. This was Padfoot, as large as life, as though he'd stepped out of a nightmare, standing mere metres away from him.
His first instinct is to go for his wand. Black hasn't seen him, and won't be able to transform quicker than Remus can fire a spell anyway but then he recognises the scene:
This is what had happened to Peter – he'd been drawn into confrontation, and other people had paid the price. How likely was it that Black could smell him, even if he wasn't looking? How quickly could he dodge the spell and cause it to hit the young person standing next to him? How many of the students would try and help if they saw a dark wizard suddenly appear? How many people would be injured if it became a free-for-all?
Casually, Remus drops his hand and strolls towards the dog. As his heartbeat calms down he notices that the young – woman? – is talking to the dog. Could she possibly…