Mr and Mrs Dursley, of number four, Privet Drive, were proud to say that they were perfectly normal, thank you very much. 

They were the last people you’d expect to be involved in anything strange or mysterious, because they just didn’t hold with such nonsense.

How can we write a code ourselves?
Let’s try encoding the name “Gennady Golovkin”.

For example: Alphabet shift (4) – go from top to bottom

a b c d e f g h i j k l m n o p q r s t u v w x y z
e f g h i j k l m n o p q r s t u v w x y z a b c d

Find the solution here.