Ragnar spent his morning drafting new mechanical designs on pieces of animal parchment using small pieces of black charcoal.
The surface of the table was covered with hundreds of papers, and many of these papers were burned at the edges or torn into small pieces.
He had spent the previous night testing small amounts of black powder inside thin iron tubes, resulting in several minor explosions that frustrated his mind.
If Ragnar wanted to ensure the total defeat of the French cavalry, he needed an iron tube that was much thinner and much longer.
The door of the room opened. Louis the Stammerer walked into the room and sat down on a bench located near the stone wall.
Louis did not speak. Ragnar hadn't even opened a reference book yet to check the weight of the iron, but Louis was already bothering him with his presence.
"Hello? I'm sitting here. Aren't you going to greet me properly?" Louis asked loudly, resting his hands on his knees and looking directly at the Ragnar.
