@harper_hahahah After Thomas left to run his branch line. The big engines missed him very much and the engines available shunting at the time in their need was Edward.
@KingGog10@heyarnoldshots On the Hey Arnold wiki it is revealed that Ludwig was sent back to juvinille hall due to the latter beating up the 4th graders and holding Arnold, Gerald, Helga and Stinky hostage as trophies on a wooden goal. BY CHOOSING TO REOFFEND AGAIN!