As I mentioned before, I don't know. [He briefly looks ever-so-slightly annoyed that Touma didn't take his obnoxious answer seriously, but it quickly fades in favor of his usual mellow tone and a calm shrug.] I'm as in the dark about the how and why as you are, unless Acumen displaced me again. If that's the case, our warden is a bit of a prankster.
After all, the last thing I remember was falling asleep in my own bed, in my brand new apartment.