Bruce Macbain was born in Chicago, Illinois. As a child, he squandered whole days reading science fiction and history. Greek and Roman history held a special fascination for him and this led eventually to acquiring a master's degree in Classical Studies and a doctorate in Ancient History. As an assistant professor of Classics, he taught courses in Late Antiquity and Roman religion—which is a particular interest of his—and published a few impenetrable scholarly monographs, which almost no one read. He eventually left academe and turned to teaching English as a second language, a field he was trained in while serving as a Peace Corps Volunteer in Borneo in the 60s.

Macbain has written a series of historical mysteries set in ancient Rome, (Roman Games, 2010, and The Bull Slayer, 2013) featuring the senatorial letter-writer Pliny the Younger as his protagonist, assisted by other literary figures such as the poet Martial and the biographer Suetonius. He also does a bit of book reviewing for the Historical Novels Review and Foreword magazine. Odin's Child is the first in his Viking series, The Odd Tangle-Hair Saga.