Two days went by since Eren started conducting his own experiments to prove Marie's hypothesis.
During these two days, Eren did nothing but focus on his potioning and taking note of his results. He would often get back to reading the study material he had.
He would have preferred if Levine was here to discuss a few things with him. But unfortunately, she had left the city for her work.
Discussing these things with Marie was inconvenient. Eren could understand what the halfling would come up with or say to any of his problems by looking at her research papers.
Frankly, Eren thought that Marie was taking on more than she could chew for her current rank. She would have had refined results had she been in the Adept rank while drawing her hypothesis.
When there was nobody nearby to help him, the butcher decided to do everything by himself. He isolated himself in his lab and carried on with his experiments.
"This should be it."
