YMMV / Infinity Train S4E9 "The Castle Car"

• Big-Lipped Alligator Moment: The Steward arrives at the castle, now being controlled by Amelia, makes a brief and clearly improvised announcement, takes the magnetic boots from Ryan and Min-Gi, before finally jumping out the window and exploding, with no explanation as to how or why, followed by Ryan and Min-Gi's numbers shifting for no apparent reason. According to Word of God, the events of Book 4 take place during Amelia's take over of the train and would have been shown in full detail in a Book 5. This likely would have given greater context to the Steward's appearance in the episode, although from the perspective Ryan, Min-Gi and the audience, it comes off as a totally random event that has no bearing on the current story.