Usually, after death, souls are detached from the keys and fly away underground. It is believed that they return to the origins, where they pass some kind of a wheel of samsara and are reborn, or fall into the kingdom of the dead. Some call it heaven or hell, others purgatory, others yellow springs… Kyon did not know whether this was true or not, but in Boston he found out through experiments on rats that souls do not hurry to the next world, but stay next to the body (or what is left of it) for 10-15 minutes, as if they do not believe that their lives have come to an end, and only then they fly away to the call underground. Almost ten minutes have passed since the first demon was killed! He needs to hurry!
Lovr activated the force of gravity of the core of the void, which was currently filled with 0% souls, and even the soul of Prince Charles, the noble phaser at the peaking stage, was felt as nothing more than a drop in an empty sea.