Annual to the 2010 Namor, the First Mutant comic series.
ESCAPE from the NEGATIVE ZONE: Part 3
While stranded in the Negative-Zone, a bizarre and savage parallel dimension, four X-Men, Captain America and Namor are captured by Blastaar! Without Water, Namor has gone berserk attacking both friend and foe alike...and seriously injuring young Hope Summers!
Collected in Steve Rogers: Super-Soldier - The Complete Collection.