Click.
Adam pulled the lid open, revealing the crate.
A bright light burst forth, falling on his face, but it quickly grew weaker, like a wave that had lost its power after washing over the shore.
As Damien had said, inside was a dense fragment of the Midnight Crystal, forcibly placed in a small crate where it could remain in a stable state for several months to several years.
If during that time, a K3-Phantom did not reach the K4-Level, the crystal was either disposed of or used as a powerful source of energy to power the entire Citadel if necessary.
Converting energy into electricity was a complex process, but humans had learned to do it a long time ago, otherwise, life would have been much more difficult. It was necessary to use all available resources efficiently so that the Citadel would continue to stand, no matter how many times the World Wipe occurred.
Tremble. Tremble. Tremble.