Princess Of Parallelograms
"...and the mystery has always been why mathematics reflects what's going on in the real world. And when you have a world with two suns, two systems, well that's even more. So it makes sense that the portals originated there, and thus the mathematical explanation would be even more elegant." She paused. "Angel?"
"I'm listening." He was lying with his eyes closed.
"Well, of course, because when you're asleep you snore or you caterwaul. Am I boring you?"
"No. Go on."
She reached under his leg for the red marker.