Sirius as a dog

[potioncat]

No: HPFGUIDX 181045

 
> > Jayne:
> > <snip>
> > Did he not find out in school though?
> 
> Mike:
> I'd rather doubt it. The Marauders kept their secret from Dumbledore 
> for sure, so I'd guess that Severus didn't know else he would have 
> exposed them, wouldn't you think?


Potioncat:
It appears that Snape doesn't learn of the Marauders' animagi tricks 
until the end of GoF, when Sirius transforms in front of him. He may 
have heard about it at the end of PoA, but I don't think he believed 
it. 

Mike, I think Severus would have exposed them, unless he made one of 
his promises to DD. He seems to keep those.