Thomas Chaloner, just returned from a clandestine excursion to Spain and Portugal on behalf of the Queen, finds London dank and grey under leaden skies. He finds many things changed, including the Government slapping a tax on printed newspapers. Handwritten news reports escape the duty, and the rivalry between the producers of the two conduits of news is the talk of the coffee houses with the battle to be first with any sort of intelligence escalating into violent rivalry. And it seems that a number of citizens who have eaten cucumbers have come to untimely deaths. It is such a death which...

Christopher Vine, a Treasury clerk working in solitary piety in the Painted Chamber of the Palace of Westminster, is not alone. A killer waits in the draughty hall to ensure Vine will not live to see in the New Year.
And Vine is not the only government official to die that season. The Lord Chancellor fears his enemies will skew any investigation to cause him maximum damage, so he decides to commission his own inquiries into the murders and, with his suspicions centred on Greene, another clerk, he instructs Thomas Chaloner to prove that Greene is the killer. Chaloner can prove otherwise,...

Identifying the murderer of the Chancellor of the University is not the only challenge facing physician Matthew Bartholomew. Many of his patients have been made worse by the ministrations of a 'surgeon' recently arrived from Nottingham, his sister is being rooked by the mason she has commissioned to build her husband's tomb, and his friend, Brother Michael, has been offered a Bishopric which will cause him to leave Cambridge.
Brother Michael, keen to leave the University in good order, is determined that the new Chancellor will be a man of his choosing. The number of contenders putting...

In the sapping summer heat of 1665 there is little celebration in London of the naval victory at the Battle of Lowestoft. The King, his retinue and anyone with sufficient means has fled the plague-ridden city, its half-deserted streets echoing to the sound of bells tolling the mounting number of deaths. Those who remain clutch doubtful potions to ward off the relentless disease and dart nervously past shuttered buildings, watchful for the thieves who risk their lives to plunder what has been left behind.
At Chelsea, a rural backwater by the river, with fine mansions leased to minor...

Rebellion is in the air of London in the spring of 1663. Thomas Chaloner, spy for the King's intelligence service, has just returned from thwarting a planned revolt in Dublin, but soon realises that England's capital is no haven of peace. He is ordered to investigate the shooting of a beggar during a royal procession. He soon learns the man is no vagrant, but someone with links to the powerful Company of Barber-Surgeons. He master, the Earl of Clarendon, is locked in a deadly feud with the Earl of Bristol, and an innocent man is about to be hanged in Newgate. Chaloner is embroiled in a...

Cambridge University is in dire financial straits: the town's landlords are demanding an extortionate rent rise for the students' hostels and the plague years have left the colleges with scant resources. Tension between town and gown is at boiling point and soon explodes into violence and death. Into this maelstrom comes a charismatic physician whose healing methods owe more to magic than medicine but his success threatens Matthew Bartholomew's professional reputation, and his life ...

There is something very amiss in the finances of Michaelhouse. Despite a new influx of well-heeled students, there is an acute lack of funds for the upkeep of the buildings, even for decent provisions. It is only when the Brother in charge of the account books dies unexpectedly that some sort of explanation is revealed: he has been paying large amounts of money for goods the college itself has never received. Although shocked by this evidence of fraud, Matthew is more concerned with the disappearance from his herbarium of a quantity of pennyroyal, a preparation known to cause a woman to...

Thomas Chaloner has forged a living as spy to the Lord Chancellor, the Earl of Clarendon, since the early days of the Restoration. Now, in February 1664, he is aware of an undercurrent of restlessness on the streets of London. The coffee houses are thick with rumours. There is anger at the new laws governing church attendance and a deepening contempt for the loucheness of the court. And there is murder.
The infamous church-smasher Dick Culmer is killed among the tottering, ramshackle buildings of London Bridge and Chaloner's investigations into the death link Culmer to a group of puritan...

In the dilapidated surroundings of the Savoy hospital, a delegation from the Netherlands has gathered for a final attempt to secure peace between the two nations. Thomas Chaloner, active in Holland during Cromwell's time, knows many of the delegates, including the sister of his late wife.
Then the body of his former brother-in-law is found in the Thames. Chaloner discovers that the dead man has left enigmatic clues to a motivation for his murder. Was he involved in a plot to steal the crown jewels, or did he fall foul of one of the many people in London who are determined that the peace...

It is drawing near to the end of term, and the University at Cambridge is in turmoil over the opening of a new Common Library. There is an attack on one of the masters at a meeting to discuss the matter, and a body is found floating in the pond in the library's garden on the eve of its opening.
Meanwhile, there are rumours of a large force of dangerous smugglers lurking in the Fens. Aided by their friend Sheriff Tulyet, Bartholomew and Michael must thwart the invaders before the Feast of Corpus Christi the following week. To fail might mean the destruction of the town...