All my books are on Amazon in Kindle and paperback format. My author page on Amazon is here (http://author.to/PaulWalkerbooks)
An audiobook version of State of Treason is available now at http://mybook.to/StateofTreasonAudio Others are in preparation and expected to be published from late 2022. They will be available on Audible and iTunes.
State of Treason

London, 1578
William Constable is a scholar of mathematics, astrology and practices as a physician. He receives an unexpected summons to the Queen’s spymaster, Sir Francis Walsingham in the middle of the night. He fears for his life when he spies the tortured body of an old friend in the palace precincts.
His meeting with Walsingham takes an unexpected turn when he is charged to assist a renowned Puritan, John Foxe, in uncovering the secrets of a mysterious cabinet containing an astrological chart and coded message. Together, these claim Elizabeth has a hidden, illegitimate child (an “unknowing maid”) who will be declared to the masses and serve as the focus for an invasion.
Constable is swept up in the chase to uncover the identity of the plotters, unaware that he is also under suspicion. He schemes to gain the confidence of the adventurer John Hawkins and a rich merchant. Pressured into taking a role as court physician to pick up unguarded comments from nobles and others, he has become a reluctant intelligencer for Walsingham.
Do the stars and cipher speak true, or is there some other malign intent in the complex web of scheming?
Constable must race to unravel the threads of political manoeuvring for power before a new-found love and perhaps his own life are forfeit.
A Necessary Killing

1579.
William Constable – physician and unwilling spy – is in Plymouth waiting to sail to the New World. The expedition, led by renowned explorers and traders, John Hawkins and Sir Humphrey Gilbert, has already suffered birth pangs.
William’s friend, Captain Charles Wicken, is accused of killing the son of a wealthy merchant, but the testimonies appear suspect. When William learns that Wicken is one of Walsingham’s agents he uncovers evidence to suggest the murder and Wicken’s naming are designed to conceal a plot of invasion – backed by Rome and Spain.
The sailing of the expedition’s fleet is delayed while this threat is examined. William is despatched to St Malo, the lawless haunt of corsairs, to investigate. His betrothed, Helen Morton, together with the fleet, wait for his return.
Malign forces conspire to prevent William from carrying vital intelligence back to Plymouth.
William must evade enemy agents and unravel a tangle of duplicity if he is to survive – and prevent the invasion.
The Queen’s Devil

1583.
William Constable, recently married astrologer and mathematician, has settled into routine work as a physician when he is requested to attend two prisoners in the Tower of London. Both are accused of separate acts treason, but their backgrounds suggest there may be a connection.
Sir Francis Walsingham and Lord Burghley urge William to discover further intelligence from the prisoners while tending their injuries from torture.
The agent’s investigations lead him to the French Embassy, which lies at the heart of a conspiracy which threatens the nation.
Through his enquiries, an unsuspecting William becomes entangled in a perilous web of politicking and religious fervour.
The threat comes from one the most powerful men in the English court – one referred to as the Queen’s Devil.
William faces a race against time to unpick these ties, climaxing in a daring raid on the Embassy.
In 2022 I shifted forward to the 20th century to write a thriller based at the Paris Peace Conference following the armistice for WW1. A Turbulent Peace
January 1919 and the focus of the World is on the Paris. Add a dash of Spanish Flu, the fallout from the Russian Revolution, and you have a background primed for intrigue as nations strive for territory, power and money.

Following the armistice, Mary Kiten, a volunteer nurse in northern France, is ready to return home to England when she receives a surprise telegram requesting that she report to Paris. The call comes from her Uncle Arthur, a security chief at the Peace Conference.
Within minutes of arriving at the Majestic Hotel in Paris, Mary hears a commotion in the street outside. A man has been shot and killed. She is horrified to earn that the victim is her uncle. The police report the attack as a chance robbery by a known thief, who is tracked down and killed resisting arrest.
Mary is not convinced as circumstances and the gunshot wound do not indicate theft as a motive. A scribbled address on Arthur’s notepad leads to her discovery of another body, a Russian Bolshevik. She suspects her uncle, and the Russian, were murdered by the same hand.
To investigate further, Mary takes a position working for the British Treasury, headed by J M Keynes.
But Mary soon finds herself in the backstreets of Paris and the criminal underworld.
What she discovers will threaten the foundations of the congress.