Charles Thomas Marvin

Returning to London, on 10 January 1876, after passing the civil service examination, he was appointed as a temporary writer at the Custom House.

His actions prompted a tightening of internal regulations that eventually led to the enactment in 1889 of Britain's first Official Secrets legislation.

[2] In 1878 Marvin published Our Public Offices, Embodying an Account of the Disclosure of the Anglo-Russian Agreement, and the Unrevealed Secret Treaty of 31 May 1878.

In 1880 he published his first book on the Russo-Indian question, The Eye-witnesses' Account of the Disastrous Campaign against the Akhal Tekke Turcomans, which was adopted by the Russian government for the military libraries and commended by General Mikhail Skobelev.

[2] The best-known of his works is The Russians at the Gates of Herat, 1885, a book of two hundred pages, written and published within a week, which circulated sixty-five thousand copies.