It was rather cold in the mountains at night. The summer heat had gradually faded away. When the light breeze found its way into the cave, both Lucien and Natasha felt very refreshed.
Natasha watched Lucien spread the parchment roll in great curiosity. Lucien activated the magic circle, turned on the crystal light, and picked up the quill-pen.
It wasn't her first time seeing an arcanist writing a paper, but she never knew that an arcanist could focus on developing his paper in such an environment and such a dangerous situation. Lucien always surprised her.
Holding her breath, Natasha watched Lucien finish writing down the title of the paper and start working on the introduction.
"The paper is developed on the basis of the relativity principle and the principle of the constancy of light velocity. Therefore, the preconditions are as follows:"
The sounds of howling beasts came from the distance.
