"Then we should head back," Strange says, as if this is the most obvious thing in the world. "And—" but before he can finish the sentence, he catches himself in a wide yawn. Strange looks a little embarrassed as he continues. "And probably get a little rest as well."

After all, it's late to begin with and only getting later. And though he won't admit it, doing an impressive feat of magic like trapping a tree in a reflection has made Strange a little bit tired.