Spider-Man marries the Black Cat, but problems start when the Vulture learns his secret.
The price of "What If...? #21-Very Good (3.5 – 5)" at Crooked Dog Comics is USD $5.00.
The publisher of "What If...? #21-Very Good (3.5 – 5)" is Marvel Comics.
The genre of "What If...? #21-Very Good (3.5 – 5)" is Superheroes.
"What If...? #21-Very Good (3.5 – 5)" falls under the category of Back Issues.
The artists of "What If...? #21-Very Good (3.5 – 5)" are Jim Valentino, and Ron Frenz.