I won't let go. I promise.

She releases him and he sinks into the black water. He seems to fade out
like a spirit returning to some immaterial plane.

Rose rolls off the floating staircase and plunges into the icy water. She
swims to Chief Officer Wilde's body and grabs his whistle. She starts to
BLOW THE WHISTLE with all the strength in her body. Its sound slaps across
the still water.