Ivan grinned widely as he made it safely across to the next tree. Finally he'd done something competent and independent. If only the others had been there to see it... 
His grin faded as he realized the mud was still pursuing him. He had a couple of other stupid ideas, one of which involved burning the tree down and jumping off at the last minute, leaving the mud to burn. Good thing he didn't have any flint, or else he'd probably be dead already. 
This left him trapped up a tree, with nothing else to try to do except accept his fate. He caled out for Raven one more time, though he knew the man most likely couldn't hear him. From Ivan's perspective, this looked like the end.