Lupin's Resignation

[Bart Lidofsky]

No: HPFGUIDX 191256

One other question for everybody, even with 20/20 hindsight, about 
Lupin's behavior in POA:

Consider: Yes, Lupin hid the fact that James, Peter, and Sirius were 
unregistered animagi from Dumbledore. But, by the time of POA, from 
Lupin's point of view, Peter and James were dead, and SIrius was one of 
Morty's followers.

Why the hell didn't Lupin give the full details of Sirius' dog form as 
soon as Sirius escaped?

Bart