oh my god? i’m pretty sure this wasn’t meant to be a prompt but…
It turns out they all know Keith, or know of him, the same way they know of Shiro–he’s infamous.
But Pidge doesn’t figure that out until later, after they tear a trail across the desert on the back of a hoverbike that’s straining under their combined weight while she holds on to Shiro like her life depends on it. It does, because if she loses Shiro she loses her chance, she loses Matt and her Dad and everything she’s been searching for.
That’s the first clue. She’s not the only one that’s been searching.
The black haired boy driving them over cliffs like he’s born to it has one eye on Shiro the whole time, like he’s ready to pull up in a dead stop and grab him if Pidge’s grip slips an inch. She holds tight, and considers him. He drives like fighter pilot flies, and no one missed the Garrison med techs knocked out cold, or the look in his eyes when he shouldered Shiro’s weight like it was something precious–no one missed the explosions he set off.
Whoever he is, he’s in as deep as she is.