[You don't get a say in it! is what he wants to yell back. But that's not right; Oz definitely has a say in it, but he also knows that Oz is in no state to fight, no matter how much he might want to. They're all powerless here, but Gilbert without his Chain is still more useful in a fight than Oz without his Chain.]

There's no other choice. Get to the train and I'll only be a few minutes behind the both of you.

[He stops himself short and then adds:]

Please...just allow me another ten minutes.