This monograph is the first close reading of a collection of sixteenth-century mystical sermons once housed in the convent of St Agnes in the city of Arnhem in the Netherlandish duchy of Gelre. Comprising 162 sermons arranged for the liturgical year, it is one of the largest collections of vernacular sermons produced in the early modern Low Countries. In her examination of them, Ineke Cornet finds many parallels with the writings of such Christian mystics as Ruusbroec, Eckhart and Tauler, and concludes that they fall within a larger mystical tradition and literary network of contemplative literature, including the devotio moderna, that was widespread in the late medieval and early modern Netherlands. Focused entirely on the contemplation of the missal and its exploration of the relationship between God and the soul, the sermons, probably written between 1540 and 1570, have nothing to say about the tumultuous events going on outside the cloister's walls, as reformation and rebellion convulsed the Netherlands during those same decades. In the course of three chapters Cornet thoroughly and persuasively analyses the mystical content of the sermons, methodically progressing from liturgical contemplation to the ascent of the soul to, finally, the union with God. The tantalising mystery behind these anonymous sermons, written in Oosters, an eastern dialect of Dutch, for an audience of religious women, is whether the author of them might be a woman as well. There are a handful of vernacular sermons written by Netherlandish women from this period, and the author considers the possibility at length, but there is no firm evidence either way. Female authorship is unlikely, Cornet concludes, but not impossible. In any event, as she notes, the manuscript's author had a deep familiarity with both the Bible and mystical literature, as well as the spiritual authority to provide contemplative liturgical commentary to a community of nuns. The Arnhem sermons offered to their audience a rich and widely sourced instruction in Christian mysticism. Cornet's fine-grained reading and explication of them is a welcome addition to the historiography of early modern Netherlandish religious and literary studies. She quite rightly notes that much more research needs to be done on this genre of vernacular liturgical-mystical literature as an important strain within early modern Netherlandish Catholicism, and there is likely much more to learn about this tradition. One hopes that this work will spark a continued scholarly conversation on the subject.