“I think I see what’s going on here,” Josh said. “From our perspective, you are still at the moment of time when you left our world.”
“Yes,” said Amelia, “I guess from your point of view the situation would look more or less like that.”
“Then why is it you can interact with us, all of these years later?”
“That’s a very good question. In a way, I suppose it’s analogous to talking on a telephone. You can use a phone to have a conversation with someone, even a very rich conversation, but that doesn’t mean you are actually in the same room.”
“So this conversation, you and I sitting on this bed. We’re actually talking to each other on the telephone?” Jenny asked.
Amelia laughed. “I said it was analogous. But in a way, yes. If you take an extremely broad view of the concept of a telephone.”
Josh looked troubled. “And if you exited back into our world through the same door you came in? That would be bad, wouldn’t it.”
“Maybe not for me,” Amelia said, “but it’s not me I’m worried about.”