Motifs in the James Bond film series the degree to which Bond girls are pivotal to propelling the plot forward varies from one film to the next. Five of the Bond girls are "bad" girls (or at least working for the villain) who turn "good" (or switch sides) usually due to Bond's influence. Bond has fallen in love with only Tracy di Vicenzo in "On Her Majesty's Secret Service" and Vesper Lynd in "Casino Royale", but both of them die at or near the end of the respective films. Roald Dahl, a screenwriter of "You Only Live Twice", said he was given a formula to work to
Vesper Lynd revealed information about Vesper under torture. Hence, SMERSH was using this operative to blackmail Vesper into helping them. After Le Chiffre's death, she is initially hopeful that she can have a fresh start with Bond, but she realizes this is impossible when she sees a SMERSH operative, Gettler, tracking her and Bond's movements. Consumed with guilt and certain that SMERSH will find and kill both of them, she commits suicide, leaving a note admitting her treachery and pledging her love to Bond. Bond copes with the loss by renouncing her as a traitor and going back to work as though