Mim looked at what she had made. "Hmm, do you see what I see Petrie. There could be one cause. It is unlikely to be the area since nothing there has changed." She said.
Petrie noded, "Same, but some grass eaten, but me no see."
Mim pointed at the two that were effected and circled them. "Look and do you see anything that is new?"
"Vylor new, he just arrive in valley." Petrie said.
"And this... thing happened when?" She asked, catching herself to remember to use simpler terms.
"A little after we meet Vylor." Petrie said, "could he be cause?"
"Could be, though there is no direct evidence, it is one possibility. Wether it is magic or not will remain to be seen. But you did well figuring it out." She said. Smiling a bit to Petrie, she would rather he figure it out then she just say what she had suspected. It may help increase his self confidence and perhaps ability to think, not a bad effect if it did occur.
Petrie shook his head, not fully understanding, "Observing, evidence? you sound like other rainbowfaces, they talk in riddles and tell story of cold fire stone having magic powers that was untrue." He said.