Cáin Lánamna "The Law of Couples", an Old Irish text dated to c. 700, is arguably the most important source of information concerning women and the household economy in early Ireland. The text describes all the recognized marriages and unions, both legal and illegal, and provides information regarding the allocation of property in the event of a divorce. The text was heavily glossed over a period of several centuries and provides insights into changes in the Irish legal system. This book provides, for the first time, an English translation of the entire text and all the accompanying glosses and commentary. It also includes an introduction to early Irish society, linguistic and legal notes, and a glossary to the tract.

Mara, a judge in sixteenth-century Ireland, arrives in a small independent kingdom on the west coast of Ireland, a land that lives according to the ancient Celtic laws, to investigate the mysterious death of her assistant during a May Day festival.

The book presents a critical edition and translation of a newly discovered early Irish legal text on lost and stolen property, Aidbred, and also includes editions of two other texts concerning property found on land, Heptad 64, and at sea, Muirbretha.