That would be the simplest way to have the Onix leave, yeah, and probably the most realistic solution in this situation I think. 
Well, you could always try fighting it and dealing enough damage to run it off, but that probably would end very badly~ xD

PMing Vec and Drummer would probably get the fastest response. I'll do it after I finish some stuff, unless you want to go ahead and do it.

As for posting - there's sure not much Abigail can do, so it's gonna have to be one of you guys who wraps it up. If you wanna go ahead and do it, I say go for it!