(We'll give everyone an AB of 3, otherwise it'll be impossible to hit anything. Both still miss though.) The dagger falls short and the blade bounces off a bone jutting from the monster. It breaks through the wall and the two get a better look at it. Its more or less a massive, sentient load of tar, bubbling and oozing towards. It's got bones jutting out of it at random, with a skull at its top, two pale red eyes glowing through.