Peter Tonkin retired after 42 years as a teacher of English, History and Law, which he also examined at Advanced level, in July 2016. During that time 34 of his novels were published in a range of languages and formats: thirty in the Mariner series of international action-adventures – novels that have been critically compared with the best of Alastair MacLean, Desmond Bagley, Hammond Innes and James Clavell – and four occasional novels including the international best-seller Killer and the vampire story The Journal of Edwin Underhill.
Since his retirement, he has embarked on several new series. These include five historically accurate spy stories set in Ancient Rome, Caesar’s Spies, the Master of Defence series of Elizabethan murder mysteries, a series of mysteries set during the build-up to the Trojan War (The Trojan Murders) and the Queen’s Intelligencer series recreating events during the late 1500’s/early1600’s. His short stories have been included in several anthologies and he is a regular contributor to Aspects of History Magazine.