The mermaid is taking you home. She can swim fast. But suddenly long rubbery tentacles raise from the water and wrap around the two of you. Its then you realize you still have your sword sheathed at your hip. The mermaid as a blade of her own, carven from a single piece of onyx stone. She is slashing furyously at the beast as it drags both of you towards its maw. You free the sword and you stab the tentacles again and again. The monster lets go and it swims away in vast cloud of ink. Aside from suction cup hickeys you are both o k.