The Doctor smirks. "You're lucky it's just one inside voice. I hear billions."

Well, billions upon billions now that Gallifrey is back in his universe. He offered a slight frown. He can't sense them now.... Not that he's going to test it in front of this creature.

"You shouldn't be able to hear much now. Usually around humans, I don't have to have my defences as high."

But he's glad to hear the Shard helps with it. Maybe he can learn how to harness it's power.