Whatever you choose to call them. [Despite the smile, her cadence suggests she's a bit impatient.] A place distant from your home, inaccessible by any standard method of transportation. It's possible some of the natural laws you're accustomed to may be different. Such as the way magic works.

[That's said a little pointedly. Whatever China could do about interdimensional travel would require a teleporter and an Isthmus Anchor. This is not her doing and she really doesn't plan to accept the blame for it.]

There's no real control over who comes and goes. Supposedly, the spell that did control it is... malfunctioning. 'Eventually' is all anyone can promise.

[China's not all that broken up about that, it's just that she'd prefer to know and control such things herself.]

You were in the middle of something important.