Proceedings of the Harvard Celtic Colloquium, Volume 42 begins with two distinguished lectures from the 2023 Harvard Celtic Colloquium. Dr. Helen Fulton explored the links between place and emotion in CelticR narrative as evoked by the author and experienced by the audience in her J. V. Kelleher Lecture. Dr. Gregory Darwin gave the keynote address on some facets of maritime folklore. Other presentations at the Colloquium to be published in this volume examine the Irish language and its effect on English in Ireland, Irish topography, medieval libraries, the role of music in the Welsh Mabinogi, and the emerging area of animal studies in relation to Celtic literature.