Full fathom five thy father lies;
Of his bones are coral made;
Those are pearls that were his eyes;
Nothing of him that doth fade,
But doth suffer a sea change
Into something rich and strange.
Last night I read a scene in Last Call where the main character, Scott Crane, is scuba diving in Lake Mead, looking for a severed head. When he finds the head, which turns out to be that of the murdered mobster Benjamin “Bugsy” Siegel, he sees that some of the skull has changed to coral and that one of the eyes is now a pearl. Coral and pearls aren’t found in lakes, so this is clearly a deliberate allusion to Shakespeare. The phrase “sea change” is even used; I guess “lake change” didn’t have the same ring. (Bill recently asserted, in an unrelated context -- a comment on "The modified Book of the Lamb" -- that lake could refer to the sea.)
When Crane touches the pearl eye, he enters a mostly-hallucinatory vision in which, while his physical body is still scuba diving, he finds himself in Siegel’s casino and meets Siegel himself as he was when he was alive. Siegel shows him a gambling trick: You put two sugar cubes on a table and, before releasing a fly, place bets on which of the two it will land on first. You rig the game by treating one surface of each sugar cube with DDT. By turning one cube poison side up and the other poison side down, you can control the behavior of the fly, which will not land on the poisoned surface. But, as Siegel proceeds to demonstrate with a monstrous fly “the size of a plum,” as the fly eats the seemingly unpoisoned sugar, it eventually reaches the DDT and dies anyway. Like Vizzini, it is doomed because it does not realize that both options are poisoned.