theHigherGeometerThe Saga of King Heidrek the Wise, by Christopher Tolkien. This was the published version of Christopher's graduate thesis (he did a B.Litt. degree, roughly equivalent to a research masters in literature) that did a critical translation and edition of the titular Norse Saga. This recent re-issued edition includes an earlier paper he presented on the Battle of the Goths and Huns.
I've not read old Norse material before, so this was a first for me. Definitely enjoyed it. You can really see the academic skills that helped with the subsequent slow and painstaking editing of the History of Middle-earth over more than a decade.
