
You have it wrong.
I did not style myself the Necromancer; just as I did not name myself Admirable, or Abhorred.
It was an accident that I was discovered at all; the White Council sniffed us out like bloodhounds, following the trail of my captain, who they call the Witch King. They suspected it was he who was raising the Nine, and so it was he they called the Necromancer– though I was presence in the Greenwood they hunted.
(It was only the Lords of Anadûnë who successfully learned the art of binding souls. Those who learned the craft from me were dubbed the Black Númenórians… Perhaps they chose to forget that my old foe, Isildur, also used the arts to curse the Men of the Mountains, damning their shades to earthly unrest…)
Despite having put the pieces together quite wrongly, the Council guessed correctly the nature of the whole; it was only their misconceptions that kept me safe. They did not believe I could return, and without me, the Nine are only shadows; it is a wasted endeavor to chase shadows with great armies.
If all had gone as I willed it, I would have continued to gather my servants and renew my strength in Dol Goldur in complete secrecy, my search for the One uninterrupted… But it is difficult to keep great power concealed in this world. I would have had to show my hand eventually.
There comes a time, always, when one must choose between being stealthy, and being strong.
