The Haereticum holds an ancient book known only as The Veritas. Throughout history, anyone who has ever read it has immediately taken their own life. When a new translation is online, spreading danger, the Vatican appeals to the Doctor for help. Will he read The Veritas? But can even the Doctor survive the ultimate truth?
Did You Know?
The line that the scientist says to Bill and Nardole, "We'll all go together when we go," is from the Tom Lehrer
song of the same name. See more
This episode continues the fallacy that every Pope is Italian. The current Pope, Francis, is Argentinian. The last Italian Pope was Pope John Paul I, who only reigned for a month in 1978 before his death. See more
The very center of the Haereticum, home of the Veritas for over a thousand years.
Truth in the heart of heresy.
And death in the heart of truth.
You'd be wizard at writing Christmas crackers, you two.
References Super Mario Bros.
Doctor Who Theme
Written by Ron Grainer
Performed by BBC National Orchestra of Wales See more