Just a short Drabble.
The Master was crouched, naked and collared in his cage, gazing blankly ahead as the drums violently pounded their demented cadence into his skull.
On the other side of the bars the Doctor, with his too wide eyes and his sharp grin, rambled on, "There, see. This is perfect, absolutely brilliant. You can't hurt anyone now! Now, now I've got you. But don't worry; I'll take good care of you. Neither of us has to be alone!"
The Master's partially healed bullet wound throbbed in time with the beat of four in his head as he continued to tap mindlessly against the metal floor.