"I will it explain it in greater detail one day," Harry began. "But, for now, just understand that my Inner Circle was deliberately and thoughtfully constructed by me. These wizards were not simply chosen at random ... I recruited each man to bring his own type of skill to the Circle, powers I then use when we join together in this style of magic. It makes the Circle that much more effective when you cover every magical aspect that you can. But there's also the fact that we are all wizards ... Sir David is merely concerned that the presence of a female might disrupt the delicate cohesion of our unit."