Reverend Mother Mystery Books in Order

Reverend Mother Aquinas finds the body of a young woman washed into the convent gate after floodwaters rise. What begins as one disturbing death opens into a layered case full of shame, secrecy, and social pressure in 1920s Cork.

A public killing sends Reverend Mother Aquinas into a case where politics and private motives are hard to separate. Harrison uses the shock of the crime to open up a wider picture of Cork society.

A much-loved priest is found murdered inside a confessional, killed in a way that feels both intimate and shocking. Reverend Mother Aquinas is determined to uncover the truth for the sake of his grieving brother.

A grim discovery gives Reverend Mother Aquinas and Inspector Patrick Cashman another difficult Cork case. Harrison is good at turning one shocking scene into a broader story about class, faith, and motive.

A young novice nun is found dead in a shed, and the obvious explanation makes no sense at all. As Reverend Mother Aquinas looks deeper, family secrets and a wider threat begin to surface.

A death tied to an old royal stronghold draws Reverend Mother Aquinas into another knot of history, local politics, and private grudges. In Cork, the past never stays buried for long.

When a well-known Cork citizen dies, public respectability quickly starts to crack. Reverend Mother Aquinas has to look past reputation and grief to find the motives people would rather conceal.

At a spiritual retreat disrupted by a looming mayoral election, a bomb in an orchard cemetery kills one of the candidates. Reverend Mother Aquinas suspects the truth is more complicated than the easy political answer.

Poisoned communion wine kills a Protestant archdeacon, and a small boy is caught in the horror as well. Reverend Mother Aquinas and Patrick Cashman face a case sharpened by religious division and deep local resentment.