On the morning of the 18th, residents of the Tower will find that those who were killed by the shadow children begin reviving, although they will continue to trickle in until the 20th, when everyone will have finally been brought back to life. The shadow children themselves slowly decrease in number over those days as well--though they won't vanish entirely.

Jason makes the following announcement over loudspeakers on the twentieth:

I've done what I can to slow down the spread of psychelysis phantoms and cull them from your levels. Still, they'll linger from now on--a little unfortunate, but I can't say I expected all of you to find real explosives and use them like that, so you reap what you sow.

From now on, shadow children will remain in the Tower as uncommon monsters. Their bestiary entry is as follows:

Psychelysis Phantoms (Shadow Children)
World: The Tower
Rarity: Uncommon
Danger Rating DAY: 9
Danger Rating NIGHT: 9
Description: Inky black humanoid creatures with white, white, white grins, these are the warped shadows of friends and loved ones from the residents' home worlds. Drawing too close to one that recognizes you will cause that shadow child to follow you around, speaking in a voice only you can hear. They sound like whoever they were at home--someone important to you--except, warped by the Tower, they only speak about how terrible you are and how you've betrayed them by surviving. They will drain energy over the course of two to three days, killing you if you don't get rid of them. Shadow children cannot be killed, but interacting with others and forming bonds drives them off. If your energy is drained by a shadow child, your collar will turn completely clear and you will not be brought back to life until two to three days later.