River squeezes his arm, murmuring back, "Spoilers," grateful to be with someone who knows her. As well as anyone ever has, anyway. She'll talk, eventually. But it doesn't have to be now.

She's always had a jealous streak, herself, always wondered at what the Doctor got up to with his companions when she wasn't in the picture. He certainly never seemed to give her much thought. Oh, they were never exclusive, not in the way humans like to square things away into neat little boxes, but loving the Doctor has always been different. But she could never be with the Doctor either, not the way she wanted, not the way his companions could. And so she's tried, especially since Darillium, since The Library, to set her jealousy aside.

Sometimes she thinks she and Jack are more alike than she cares to admit.

"They never learn, do they?" Her parents had been human. Most days, she claims to be human. But humans, particularly Earth humans, make consistently poor decisions. "It's interesting the moments they choose, isn't it? Some of us at our best, some of us at our worst, and some of us on a perfectly ordinary day."

Her palm flattens against his chest again. "About those spoilers, have you ever heard of The Library?"