He regarded her for a moment, as though silently deciding whether or not she was really dropping the line of questioning. And ironically, the fact that she had seemed to, is what prompted the crisp answer-- by not digging for it. "Five," he said shortly.

"What is any shadow? A reflection of dark cast by the light. It's... a layer, or an echo, of the world. Like how the Dreaming and the Death planes are to the Life plane here."