Oh, Marius is definitely chancing to escape. He senses the weight lift off him and he rolls away almost at the same time R hits the water. It's a little difficult with the weight of his soaked costume, so he starts with a crawl for a second or two before he gains his footing, hurriedly plodding through the water and darting a glance over his shoulder before his boot hits the dry area of land.

Once there, his pace quickens. The mud is sticking at his face and the back of his neck and they will likely end up caking on his clothes and hair and skin, but he thinks little of that as he races through the desert, tired and panting but forcing himself to move forward, his heart still beating heavily after that close encounter.