Even if you get teleported back to the same zone, it would cause the spell to be cancelled. And yes, you would be out a Full Action and 22 Mana. It can be a devastating turn of events if you pull it off. Usually people summon such expensive creatures really early though, making it tough to get a Divine Intervention on them beforehand, and once you've had it used on you once, you'll be wary of it ever happening again. It's one of those "fool me once, shame on you" kind of things.