I'm back! from Sarah

Dear Word Spy,

Remember me? I'm the one that made up the code. Now I made up a new one.

Cvn yyz wyrk xt yzt??????

frym yyzr fvn,

Sarah


Dear Sarah,

Now this one is really tricky. I wonder if any of the word spies out there can crack Sarah's code?

I may be wrong, but I think it might have something to do with the letters A E I O U.

Vm X rxght?????

from the very impressed Word Spy