Extra stamp on top page block.

The Valley Where Time Stood Still (1974) - the first sequel to The Man Who Loved Mars (1973.) M'Cord, the loner, an Earthling adventurer who did not fear to go where no human had gone before; Thaklar, heir to the lost greatness of Mars; Zerild, the Martian dancing girl; Chastar, the murderous outlaw in their power; and Phuun, the corrupt and spoiled priest - this strange band desired to discover the fabled Lost Eden of Mars...