The New Middle Ages is a 25-book series with 2 released primary works first released in 1133 with contributions by Pierre Abélard, Héloïse d'Argenteuil, Heloise, Frances A. Underhill, Heather Blurton, Albrecht Classen, Sarah L. Higley, Susan Signe Morrison, Timothy Scott Jones, Roger A. Ladd and 2 others.