"It wasn't technology, but... kinda?", Lea said. "Basically, you're brought here from a certain place and time, you'd get put back at that same place and time if and when you got sent back; at least that's how I understand it."

"And any of your friends could turn up here from a different time than you. Or a different version of your world. Or both. Or another version of you could turn up, one who ended up in a totally different career, or who has superpowers, or has cat ears and a tail." He shrugged. "Basically just... welcome to the multiverse; it only gets weirder from here."