[quote=@Silver Fox]
<Snipped quote by Caits>

True, but he could of also knew that Sasha already had the cure for the poison so Lazarus would of still lived. 

Just freak her out.

And find out Prince was a medical expert by looking into Dragon Fang since he's been there for about 4 years. And he's seen him go with Sasha just before the train station.

But I see your point xD
[/quote]

There's also the idea that maybe Sasha knows who the timelord is.