Jack Frost is found by MOD Harry during his first year. Harry introduces him to a town where everything can exist and be seen. He also teaches Jack how to use his powers creatively.

"Excuse me for doing my job." Jack grumbled, vaguely keeping track of the aurai who were wind-skipping nearby and the Yeti's that weren't exactly being subtle about sneaking up on him. He held up a hand and looked at the snowball that formed, that labyrinth movie had been so inspiring. Concentrate on where you're going and instant teleport. Better than portals or his unfortunate other method. Becoming a breeze was simple but hugely distracting and belief non-corporeality sucked as it was without total non-corporeality. Being walked through or walking through someone else sucked majorly.

The worst was when he accidentally phased out of his clothes and forgot to make more. Thank goodness he phased back in at home, in his room. That could have been bad otherwise. Having his clothes made out of opaque snow was a good idea as well. He could keep them from melting easily enough.