Government-Sanctioned Superheroes

The 2nd book in the Working-Class Superheroes series.
Army vet Dwayne Sullivan has escaped from prison in order to keep an other-dimensional artifact out of the wrong hands. To do this, he needs the help of superheroes, powerful meta-human do-gooders who are the heart and soul of Hammer City. But those heroes are being recruited by General Gordon, the very same military general who imprisoned Dwayne in the first place. Will Gordon be able to prove to his superiors that superheroes have value in the modern world? Will Speed Chicken and Cambio keep the mythical Staff of Osiris away from an alien warlord? What role will Dwayne's son Zeke, who doubles as the (super-powerless) costumed vigilante Wombat have in his father's quest?