Let me see if I can predict something: They're going for the fountain that should be 30 min from there, but they're flying so it will take 10, apparently.
But on the way back they'll have to walk/run, since he can only carry one person so it will be 30 min.
Spica will also tell them the secret of her rejuvenation magic (since she will have to turn sensei into a human in front of them), so my guess is: During all this time, there is no way no one will get hurt (or killed), so I can see someone get really bad injured and someone else closer to that person throwing the blame on Spica like it's her fault that they are being attacked.