David lets out all of his air, his kungs hurting, he slashes again a few times, hitting something three times he could tell, it felt hard though easily punctured by his knife, he kicks back away from the thing and shovels the weaker mud out of his way from which he came, feeling like he was ready to black out 'If I can just get outside this mud...i could sink to the air pocket! Hopefully Jason's okay...' He feels something pulling at him, but he tries to knock it off, not able to see in mud, unknowing what it is.