The Face in the Frost is a short 1969 fantasy novel by author John Bellairs. Unlike most of his later works, this book is meant for adult readers. It centers on two accomplished wizards, Prospero ("and not the one you're thinking of") and Roger Bacon, tracking down the source of a great magical evil. The subject matter prompted Ursula K. Le Guin to say of the novel, ""The Face in the Frost" takes us into pure nightmare before we know it—and out the other side."