Notes

The killer leaves notes at each crime scene. Each one is a countdown to six, telling investigators that more victims are to come.

Button

Dallas loses a button while on Roarke's plane. Roarke finds the button and carries it with him throughout the novel as a connection to the unusual woman he is falling in love with.

Coffee

It is unusual in Dallas's time to have access to real coffee. Therefore, when Roarke discovers how much Dallas likes real coffee, he makes a gift of a pound of coffee to her.

Tobacco

In the time in which Dallas lives tobacco is illegal except in free air space, open water, and private property. Roarke continually breaks this law in Dallas's presence.

Sharon's Diaries

Sharon DeBlass has kept diaries all her life. When Dallas learns this, she begins searching for the diaries, eventually finding them in a bank safe...