When the other keepers of the village cannot discern the hidden meaning in Number Six's messages, Number Two suspects everyone working for him of being part of a conspiracy. In the end, Number Six confronts an unnerved and agitated Number Two, who expresses the belief that Number Six is really "D-6", a man sent by "XO4" to test his security. Feeding on Number Two's paranoia, Number Six charges Number Two with treason: if Number Two's belief was true, then he would be duty-bound not to interfere. At Number Six's insistence, Number Two calls the hotline to Number One to report his own failures and ask that he be replaced.