This dead man is bound up with my life, therefore I must do everything, promise everything in order to save myself; I swear blindly that I mean to live only for his sake and his family, with wet lips I try to placate him—and deep down in me lies the hope that I may buy myself off in this way and perhaps even get out of this; it is a little stratagem: if only I am allowed to escape, then I will see to it.
There are no more uses of "stratagem" in the book.
Show samples from other sources
And I think of rats again and how sometimes, to pass the interminable hours, Teacup and I would plot our campaign against the vermin, stratagems and tactics, waves of attack, each more ridiculous than the last, until she dissolved into hysterical laughter, and I gave her the same speech I gave Zombie on the firing range, the same lesson that now comes home to me, the fear that binds killer to prey and the bullet connecting both as if by a silver cord.
Rick Yancey -- The Infinite Sea
If more is said that Marie-Laure cannot overhear—if there is a pantomime going on between them, notes passed, stratagems agreed upon—she cannot say.