Titan Pocket Book #2

In the shadow of World War II, a frail young man named Steve Rogers becomes the unlikely centerpiece of a secret government experiment. After receiving the Super-soldier serum in a hidden lab, he transforms into the peak of human potential—only to face a deadly Nazi spy who assassinates the scientist behind the breakthrough. With the world at war and a new hero born, Steve Rogers dons the iconic costume of Captain America, becoming a symbol of resistance. When his childhood friend Bucky Barnes uncovers his secret, the two forge an unbreakable bond as partners in the fight against tyranny.

In "Kala, Queen of the Netherworld!", Iron Man is taken captive by Kala, the ruler of a hidden underground realm, who demands his help to launch an invasion of the surface world. With the help of a young man named Jim and a reluctant ally in Evans, Stark must convince the queen that life above ground would be fatal to her kind—before her ambition leads to disaster.