This is the prequel/backstory for The Syncode series I am currently working on, detailing how medical assistant 'Average Jo' Joanne Hartwell meets the elder Holmes cousin, Julian Holmes. It is he who introduces her to his British cousins, Mycroft and Sherlock Holmes. Later in The Syncode, Jo will end up working in London and abroad with the brothers and Julian to find the persons or group who have infiltrated the top ranks of both the British and Australian Intelligence agencies. No one can be trusted, and all codes and cryptographic cyphers currently used within the organizations are compromised. It is Julian who directs Joanne to use her gift of languages and Synesthesia to create a unique code with a double cipher to help MI5 and MI6 overseas find the perpetrators. The story in this timeline takes place somewhere between season 3 and 4.