Answer to SLHS Christmas Quiz Q7 "What is the name of the door in the North wall of St John's Church?"
The Devil’s Door.
A widespread belief in the Middle Ages held that the Devil resided in an unbaptised child’s soul; at the baptism, the Devil would be driven out of the child and had to be able to leave. Accordingly, a door was often built into the north wall for this purpose and left open during the ceremony.