Calvin showed his new companion over to his place. And by that, we mean his bunker/safehouse.
"So, how did you know who I was, anyway?" Melody asked.
"Time is, well, timey-wimey. I met your future self sometime in my past. Anyway, how does the Jurassic era sound?"
Suddenly, Melody's phone began to rang.
"Who is that?"
Melody groaned. "It's Mum."
"Hi, Amy."
"Hello." Amelia Pond paused. "Do I hear sirens in the background?"
"Uh, yeah."
"Mels, not again..."
A faint voice with an American accent. "Wait, did she just ask about the sirens?"
"Long story, Calvin."
"Mels, who are you talking to?"
"Calvin."
"Calvin... who?"
"Just meet me at 7429 Tioga St, Pittsburgh, PA 15208, USA."
"Alr-"
"You know what? I'll pick you up."
Amy exited her home. Right then, a rupture opened in spacetime, and a cardboard box came out with three occupants.
Mels, a 14-year-old with spiky blonde hair, and... a stuffed tiger.
The kid looked confused for a second, then facepalmed, pressed a button, and the stuffed tiger instantly doubled in size, turning into the form of a bipedal Bengal tiger.
Amy blinked. (Probably a bad idea when dealing with time travel, but she was pretty certain no Weeping Angels were in the box.)
"Come on in," Calvin said. "Oh, and put these on," handing Amy a pair of normal-looking goggles.
"What are these for?"
"Vortex goggles. Unlike more sophisticated Gallifreyan equipment, the Time Machine doesn't have a vortex filter. These protect you."
