Board Thread:The Panopticon/@comment-4028641-20151008023030/@comment-1783865-20191107103948

Slight rewrite. The Eye seperated him from his Roberts body, and his mind was eventually rescued from with the Time Vortex. He eventually got transferred into his Preacher body. He eventually suffered from a damage that transformed him back into his partially healed crispy form (Beevers) forcing him to wear a golden mask to conceal his identity until eventually revealing himself to the Doctor.

He was then eventually granted a new cycle, triggering a regeneration, of which the MacQueen version was the first.

That's how I would explain it, anyway.