Final answer:
The text excerpts provided discuss Jane's situation with Lassiter and do not directly answer the question regarding Isabel spying on the Locktons. If referring to 'Chains' by Laurie Halse Anderson, the character Curzon is the one who encourages Isabel to spy.
Step-by-step explanation:
The part of the text provided does not directly answer the question about who encourages Isabel to spy on the Locktons. Instead, it discusses the character Jane's interactions with Lassiter, including her internal conflict and strategies regarding those who are spying on her. If this question pertains to the novel 'Chains' by Laurie Halse Anderson, the answer would be that Curzon, a fellow slave, encourages Isabel to spy on the Locktons. However, this is not explicitly mentioned in the excerpts provided. It is instead inferred based on knowledge of the novel.
Jane's struggles and the espionage theme parallel the subterfuge and deceit faced by Isabel in 'Chains.' Jane's difficulty in balancing her morals with the need to partake in deception echoes the challenges that Isabel faces as a spy. Both characters must navigate a world of secrecy and dishonesty in order to protect themselves and achieve their goals.