You aren't going to go down without a fight. You grope around in the mud for a rock to hit the monster with.
You actually manage to get a couple good hits in on the tentacle before another one wraps around you arm, preventing you from swinging. Another tentacle wraps around you chest and starts to squeeze.The air rushes out of your lungs and the tentacle relaxes letting water in to replace it. Your throat and lungs burn as your vision goes black. It is perhaps a mercy that you're dead by the time the cecaelia eats you.