Sirius' wand

[zoomphy]

No: HPFGUIDX 41633

I did a quick search using the ML search engine but nothing came up, 
so I hope I'm not dredging up an old topic.

In PoA, Sirius was explaining in the Shrieking Shack how powerless he 
was (I don't have the book on hand to quote him exactly but I think 
it was in response to Hermione, asking him how he escaped without the 
aid of Dark Magic) in Azkaban without his wand. Yet he had his wand 
in the Shrieking Shack.

How did he get it? Wouldn't it have been destroyed when he was taken 
away to Azkaban? Did he drop by Ollivander's real quick for a new one 
after he escaped? Doesn't seem likely Ollivander would help an 
escaped prisoner.

Just curious,

K.