The works of the seventh-century writer Virgilius Maro Grammaticus are among the most puzzling medieval texts to survive. Ostensibly a pair of grammars, they swarm with hymns, riddles, invented words and imaginary writers. Conventionally interpreted either as a benighted barbarian's unfortunate attempt to write a 'proper' grammar, or as a parody of the pedantic excesses of the ancient grammatical tradition, these texts have long been in need of an...