Catalan:
After fleeing fascist spain to Portugal he wanted to help fight the Nazis, so he asked the British to become a spy and was ignored, then wrote to Germany saying he lives in London and wants to help the nazis, and made up a whole fictional spy agency from the comfort of a Portuguese library.
Then he told the British and became a double spy, sending false information. All while getting paid by the nazis to maintain his fictional spies and bribes.
Most importantly he wrote about d day and gave the wrong location to make the nazis focus somewhere else. then waited a few hours to send the correct location so the letter arrives too late.
He helped win D day, and was awarded the Member of the Most Excellent Order of the British Empire for it. and also got an apology from the Nazis for getting his vital information too late and got the Nazi iron cross.
best spy story ever