Secrets of the Silent Witch Novel Volume 6 was written by Matsuri Isora with illustrations from Nanna Fujimi.

Monica suspects Duke Clockford is somehow involved in the incident with the curse dragon, but she doesn't have solid evidence. With her left arm still suffering the aftereffects of the curse and her heart full of doubt about the second prince, she begins her second semester at Serendia. However, now the prince is on the lookout for someone with a wounded left arm, and there's a new transfer student at the academy—a notorious troublemaker from Minerva's who knows Monica's true identity. Meanwhile, the Starseer Witch warns that the Seven Sages will soon be down to six—could this ominous prediction have anything to do with Monica's troubles?