Collects Namor: The First Mutant #1-4. Spinning out of the pages of X-MEN, comes an incredible book starring the world's first mutant, NAMOR THE SUB-MARINER. When the X-Men are confronted with a deadly vampire threat, Namor takes matters into his own hands on a mission that might bring down the entire might of the vampires on their heads...and destroy Atlantis in the process!