What If? (1989-1998) #21

In this intriguing alternative tale, readers dive into a vibrant universe where the Sub-Mariner takes a surprising romantic turn, choosing to marry the Invisible Woman instead of sticking to his usual aquatic escapades. As this unexpected union unfolds, the story explores the ripple effects on their worlds—heroes and villains alike.

Bill Mantlo and Gene Colan craft a narrative filled with rich character dynamics and imaginative twists, inviting fans to ponder the countless 'what ifs' of the Marvel universe. The stakes are high, relationships are tested, and the consequences of love and duty come to the forefront, making this issue a fascinating exploration of the paths not taken.