The editorial history of the two Pseudo-Clementine narratives known as the Recognitions and the Homilies is intricate, to say the least. From an ever-elusive “basic writing” spring two novelistic stories with extensive translation histories, subjected to significant editorial interventions, and anthologized alongside other late ancient and medieval texts. This article focuses on the addition of pseudonymous epistles as prefatory material for these Pseudo-Clementines and follows one of these letters in particular, the Epistula Clementis (Ep. Clem.). The Epistula Clementis accompanies the Latin Pseudo-Clementine Recognitions in a host of medieval anthologies concerned with Petrine hagiography and ecclesial succession, as well as histories, dialogues, and epistolary texts with anti-Judaic resonances. I argue that the Epistula Clementis, as a prefatory text, was integral to the success of the Recognitions in these later anthologies, highlighting the transformative power of the preface upon its associated text as well as the hermeneutical force of the anthology itself.