As far as the TARDIS is concerned, they weren't discussing anything secret anyway; in fact, her information will likely be useful for everyone. "Oh he is far from human," she replies in a tone of voice that suggests she was rather impressed with him. "He called himself a demi-god, but he didn't seem very committed to that designation. I would say he is fairly similar to me in terms of mental scope and power, though we were both rather guarded about not revealing too much of ourselves." Which was necessary at the time, of course, but she does hope they'll be able to develop some mutual trust and perhaps a friendship. She so rarely gets to meet beings who are able to understand her.

"I liked him too," she agrees with Andrew, "but do be careful. Apparently he has powers of creation and others, like time travel, though the rift limits him as severely as it does me."

She doesn't even notice Daine's hesitation, unable to imagine that someone might think it's rude to explore her structures, when that's part of her purpose. Behind the door, one of the larger libraries is waiting for them, looking something like this, with several levels of bookcases and a high vaulted ceiling, velvety soft furniture and flames crackling in the fireplace. Not that she's showing off or anything.