Caesar Shift 7:
and as for valor, that cannot be computed by stature. he has passed through more battles and perils than you have, ingold, though you be twice his height; and he comes now from the storming of isengard, of which we bear tidings, and great weariness is on him, or i would wake him. his name is peregrin. from lord of the rings, book five, chapter one
The Caesar shift cipher is just formed by shifting the alphabet down seven places from its usual spot. Tradition maintains that Julius Caesar himself used this cipher with a shift of three places rather than seven. Since there are only 25 different shifts, this isn't secure in the least; it's common for a cryptanalyst to run unknown ciphertext through all of the shifts before checking any other cipher.