[Regis nods at the explanation.]

I should have thought of that. It's a bit like warping. Warping myself hardly requires thought, but when I take someone with me it becomes much harder.

[His expression brightens a great deal once he hears the end of the tale.]

A proper sense of observation and attention to detail. My friends tease me sometimes because of my unending questions, but sometimes those details can be the only thing that divides life from death. I am glad to hear things resolved themselves so well.