It's Not Her, Its the Thing That Attacked

there's julia in the water there's micheal in the water one of them takes a dive now micheal's in the water michelle has been in the water neither come back alive michelle floats to the top, micheal stays below julia dives back in, she does make it back, but something attacked there's blood, she is seen never again there's harry in the water there's terri in the fire terri can swim in the flames but harry is burned completely submerged and ash in the water remains the thing that attacked is eating the ash and then the remains of one more the water is clear terri dissappeared and julia's back on the shore. How did julia make it back?