Is it just me? Or do we see our hero’s bare arm in the second panel?  Hiding behind the aft bulkhead door, he is ready to ambush the other diver… which again he assumes to be his enemy…  heck could be another recreational diver, right?  I mean, what evidence does Mark have that this guy or his diving buddies are up to anything?  Sure, a harpoon grazed him, but that’s easily explainable…  In a world where hand signals are your only form of communication, misunderstandings must abound!

Sure is an awful lot of ambient light inside the ship, too…