What is the main conflict in Modoc: The True Story of the Greatest Elephant That Ever Lived by Ralph Helfer?

Bram and Modoc's adventures begin at sea when a monsoon hits and the ship is destroyed. Lost at sea, Modoc still manages to find Bram and save him as well as many others. Rescue comes just in time and Bram and Modoc are taken to an Elephantarium run by the maharajah. There, Bram learns to lead an even more spiritual life, becoming one with nature and developing an even closer relationship with Modoc. The two live happily until word reaches Bram that Mr. North has discovered his whereabouts and is coming for them. Bram sadly leaves his friends and sets out across India to evade the circus owner.