I couldn't find the last monster in Fathoms. I got two mermaids in the first room, and two sharks (?) in the last room, but I couldn't find any monsters in the middle room?
In the middle room, check among the piles of treasure. (Spin the vehicle with A/D or Left Stick to get a better view)
you know what? I'm disappointed in myself that I never tried to spin the vehicle. Thanks!
