For the twentieth anniversary of the start of the Matthew Bartholomew series, Sphere is delighted to reissue all of the medieval monk''s cases with beautiful new series-style covers.

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The winter of 1353 has been appallingly wet, there is a fever outbreak amongst the poorer townspeople and the country is not yet fully recovered from the aftermath of the plague. The increasing reputation and wealth of the Cambridge colleges are causing dangerous tensions between the town, Church and University.

Matthew Bartholomew is called to look into the deaths of three members of the University of who died from drinking poisoned wine, and soon he stumbles upon criminal activities that implicate his relatives, friends and colleagues - so he must solve the case before matters in the town get out of hand...

It''s August, 1354, and physician-monk Matthew Bartholomew jumps at the chance to travel to Ely with his friend and colleague Brother Michael, as it will give him a unique opportunity to study in the richly stocked library of the Benedictine priory. Michael has been summoned to the city by his bishop, but it isn''t until they arrive that they discover the reason - the bishop has been accused of murder. The charge seems ludicrous, but Michael takes the investigation seriously and energetically sets about his task.

At the same time Bartholomew comes across an underground movement of rebellion against the church and the tithes they demand from the laity, and the two men also learn that there has been a spate of burglaries which are being blamed on a band of travellers. Then a fellow of the priory is murdered almost under their noses. Can this death be connected to the others? Are all the killings linked to the burgeoning rebellion in the city?