Maria was in danger, and Ozma couldn't help.
A thick fog had settled around their wagon as they rode. The feeling wasn't instant for Robin, but became apparent rather quickly. It was the unique type of fog that only really existed in the Vales. The magical-cancelling kind. A rather lewd comment about utilizing the strange phenomenon for their indoor-sexual-adventures was at the tip of his tongue, but it was quickly brushed aside.
Ozma apparently sometimes had feelings. Outside the normal spectrum of simply feeling emotions and sensations on what was presently happening - or even bouncing off of what was going on inside your head, this was different. He sometimes got a feeling when someone he was close with, was in danger. Or...something like that.
Robin watched him - keeping a hand on his back, as they rode in their wagon, to try to escape the clutches in the fog. Ozma's focus was on his phone, sending messages to the loved one of the woman in danger.
On top of everything, he knew...Ozma felt out of sorts when his magic was cancelled. It was for that reason that Robin was firmly against the use of Prometheus Dust in more intimate situations. So that was likely not helping anything.
All in all, it was a mess.
Robin continued to draw circles on Ozma's back as they rode - casting the occasional side-glance to check on him, before refocusing on driving them.
"Even without being able to physically teleport there, you gave them more of a chance to stop...whatever is about to happen, then they would have had otherwise. They have a chance to help her now," his eyes ahead of him as he spoke, "And this fog can't be endless. We'll reach the edge soon. I just know it."