"Making your own explosives. Yeah, that's the kind of thing Rocket or Tina would do. Given that Rocket's not in the best shape, I'd put my bets on Tina. Though I gotta say, these strange symbols are pretty spectacular."

Palmer moves on quickly, his emoji switching to 🧠 as he considers the Doctor's description of Rocket.

"Rocket's a fighter, don't let his size fool you. He's had a hard time back in his home universe, I think, and he hasn't really been himself since then. It happened right after the situation with the Fallen started to clear up. I'm not completely sure what happened, only that it affected a lot of people here and that it was really bad."

Most of what Palmer knows about what happened in Rocket's universe is hearsay, but it was alarming hearsay. "Heard half the people in their universe were wiped out." He snaps his fingers. "Just like that."