In Infinity Train, Tulip and Ameilia not only serve as the main hero and villain for Book 1 respectively, but the actions of the latter also serve as the inspiration for the twisted beyond saving ideals of the villain for Book 3. So with the release of Book 4, I take a look back at Infinity Train Seasons 1, 2 and 3 and explain how Amelia’s arc does something that isn’t necessarily common in television shows; turns Infinity Train’s story into a trilogy