From Avengers #292 and #293, we have Namor once again making a huge sacrifice to save others. His wife Marrina, a Plodex, has been transformed into her giant killer monster aspect and has been wrecking havoc on ships and the coastal areas. The Navy is sent after her, and despite Namor warning them of the dangers and warning them to leave, Leviathan Marrina destroys the ships. Namor does not leave the airbreathers to their fate ...
He surveys Leviathan Marrina's work and comes to an awful realization.