If the Doctor were to do something besides frown at the weapon, Eva would give him a detailed run-down about why she chose it. A sort of poetic irony, actually, her little revolver. Edriss used Eva's body to make a speech to the Council of Thirteen and save humanity because 'if every human fired a single bullet, they could miss ninety-nine percent of the time and still destroy us'. Now Edriss is dead, and Eva's version of humanity might be lost forever to the Ohm, and she can think of no more suiting way to protect her own fragile body than a gun that only fires a single bullet at a time.

"Do directions make much of a difference here? Do you have any idea what made these paths, perhaps?"

The Doctor probably doesn't, she thinks. He seems surprised by the whims of the Phantom Tollbooth almost as much as anyone else, only to him it seems to be a quirky, unpredictable friend rather than an intimidating environment. And even the Doctor seems shaky now, although she can't be sure if that was because of her mentioning his home planet earlier or the dangerous violation of his home.

"We should probably stay together, if only because I don't have any crumbs to trail behind me to find my way back."