The Doctor was looking at Caitlyn "Jack isn't well , I think for now we should stay here, he can't defend himself right now, He may not be able to die but we don't want him captured,"
He knew he would have to look for evidence of the Master at some point.
The time lord was thinking "I don't want to kill the Master, but I will find out what he is up to and try stop him."
He knew he would have to look for evidence of the Master at some point.
The time lord was thinking "I don't want to kill the Master, but I will find out what he is up to and try stop him."