In what is both archival document and poetic homage, Belfast-born writer Maria Fusco evokes Ben Cruachan, the largest peak on the west coast of Scotland through three historical voices the tunnel tigers, the Irish explosives experts who carved out the mountain for a power station; Elizabeth Falconer, the artist who created a mural inside that only the site s workers see; and Granite, the 450-million-year-old rock of Cruachan itself. This artful publication weaves together Fusco s script, extensive archival black-and-white images documenting Power Station construction, the artist s mural and the deep and powerful voice of the mountain to create a poem of words and images. Based on the performance broadcast conducted live from inside the mountain for BBC Radio 4, UK, October 2015, Master Rock is a quiet but powerful exploration by a woman artist of the drive to conquer and feel oneness with the forces of nature.