Query: Books about social psychology set in the Middle Ages that are Hachette Book Group books
Domain: books
Relevant documents:
Julian (novel)
Circe (novel)
Evidence from documents: Julian (novel): who reigned from 360 to 363 A.D.
Circe (novel): '''''Circe''''' is a 2018 novel by American writer Madeline Miller. Set during the Greek Heroic Age