Your Dog Is A Criminal - Tumblr Posts
Reblogging again
crack au where in the beginning of book 3 when sirius comes to see harry in dog form he just...follows him onto the Knight Bus. and Harry's like 'well this is weird' but his life is weird. so whatever. and then the whole rest of the summer the dog just stays with him. since other people can see the dog he figures it's definitely not a Grim. And the dog seems pretty friendly. and well behaved. and he kinda likes. so harry's just shrugs and is like 'well this might as well happen' and when he meets up with his friends he tells them apparently he has a pet dog now.
can't decide if that would mean that book 3 still happens the same way as in canon or if peter takes one look at sirius and ditches and ron's always confused about why Scabbers ran away OR if Sirius eats Scabbers and consequently voldemort doesn't return and Harry has a very chill rest of his time at Hogwarts (except for the bit where he inevitably discovers that his dog is actually not a dog).