After he finishes with his day-job duties (separate from attending diplomatic functions to stand around and look handsome) he attempts to let himself out of the room with the comconsole and all its data to sift through, only to find that the hallway has turned into a bar.
He looks over his shoulder. The office is still normal. Which is to say there are no other exits.
Ivan goes into the bar, squinting.
Then a small child emerges from under a table. He looks exactly like Miles did at ten years old, right down to the height. Four foot two.
He stalks towards Ivan with a very unMilesish animal tension, crooked back stiff and tiny fists clenched, like a cornered rat ready to start biting at the first sign of trouble. In an aggressively Jacksonian accent, he demands, "You Barrayaran?"
Ivan intends to be incredulous, not cooperative, but his accent probably answers this for him.
"Nnnnno. I haven't been twelve for a while but I assure you I'm Ivan Vorpatril. Are you a clone? Did somebody clone Miles? Shouldn't you be taller?"
"The bio didn't mention you were an idiot. I'm a substitute, dumbshit. They're training me up to replace him. Didn't say why, I guess I'm not supposed to know till I'm older. Probably they want me to kill somebody, I heard them arguing about when they wanna start my close combat training." He sniffs contemptuously. "Better not be soon or I'll kill 'em all. Ser Galen was right about that."
"Okay, how about instead you don't substitute for Miles in order to kill people and do something else instead? If you're stuck I can probably tell somebody who'd know how to unstick you where to find you."
"I don't even know who you are," says the clone. "Can't hurt, I guess." He grins viciously at some private joke. "I'm on Earth. London. They didn't tell me the address, but I know Ser Galen's cover identity is somebody Van der Poole. He wasn't the one who leaked that. He gets me. It's everybody else who keeps underestimating me just cause I'm five."
"Van der Poole as cover identity for a Ser Galen. Okay. I'm on Earth, too, so now the problem is why you think I'm supposed to be twelve."
"The latter, on the nose," says Ivan. "So apparently in addition to replacing embassy hallways and however you got here, this place does time travel."
"Yeah, well, sometimes I can tell when I'm dreaming and sometimes I wake up under the impression that m'mother has let me get a dog only to discover that there is no dog in the house," says Ivan, "but I wasn't asleep, so if you are, this is even stranger still."
"I have - references to holos," says Ivan, "that's about it. Not close references, either. We could look around. Have you got a name?"
"Well, that's just confusing. Don't know aunt Cordelia's father's middle name, though. D'you?"
"'Cause that would make you Mark Pierre Vorkosigan, if I know Aunt Cordelia. For lack of a better solution to the problem, anyway, if you'd been going by Jean-Phillipe all this time I wouldn't say boo."
"Miles would've been Piotr Miles, but Piotr pitched a fit. And then for the second son it's middle name, maternal then paternal. If one chooses to do the thing, anyway, I don't have this."