Spinning out of the pages of X-Men (Vol 3) #1, comes an all-new series 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 in the process, destroy Atlantis! What lurks down below the ocean where the sun can’t reach? What he thought was a fable to scare the children of Atlantis comes to terrifying life in the form of a newly-discovered race of Atlantean Vampires. Namor’s choice, to stand with Atlantis or the X-Men, will define a new chapter in his life…or death.
There is an eight page backup feature in this book -- An Atlas Foundation file, recorded by Namora, that basically recaps the life of her cousin, Prince Namor the Sub-Mariner. The file consists of text and pictures, and many of the characters listed below only appear in this informative backup feature.
Oudvrou, General Kadar, Husam, Husni, Abira, and the Highlord appear in the main story of this issue.