The Long Trains Roll

Twilight materialized in a flash of purple light and quickly placed the creature on the nearest bed. Turning away from the bed Princess Celestia and Princess Luna were there, along with a stallion she didn't know, but had a cutey mark with bandages and a stethoscope.

"Doctor, this creature has a large gash on its forehead, a minor concussion, and it has been in a train wreck, so it might have other injuries," she quickly explained. Turning to the Princesses, she said "The firepony said that it was walking for a few minutes, and then it fell." As an afterthought, she asked, "Have you contacted the Canterlot & Northwestern?"

"We have. They are sending a train to collect the passengers, and they are constructing a track around the wrecked train. I have dispatched your brother and a number of scientists to bring the wrecked machine to Canterlot. It will be put in a tunnel on an abandoned branch line of the C&NW under the cover of night. When the creature comes to, we will question it about the purpose of its machine. Our scientists are closely working with the railroad to determine the cause of the machine to fail, and to reverse-engineer an exact, working replica of the machine to conduct tests on," Celestia said.

Luna chimed in, "Is that wise, sister? We don't know what this thing is. We don't know if it is harmful."

"Relax, sister," Celestia replied. "Everything is in hoof"