Capítulo 465: Farewell, Nathaniel.

Arnold had to put everything on hold for he had received terrible news. One of the closest people to his heart, had left the world to find peace in the most wonderful place. Nathaniel Black was no longer in the mortal world with them. He had been struggling with old age for some time now and despite Arnold's numerous attempts to help him out, Nathaniel refused.

He didn't want to live any longer than he absolutely had to and asked Arnold to give him this last gift. So Arnold respected it and never brought up the topic of healing his dying body again. That was a year ago when Arnold met him for the last time and now while working on making new weapons, Arnold was informed... that Nathaniel had died of a heart attack.