The baseball gods blessed Frank Ryder but his conscience torments him. That’s the guts of “The Fireballer,” a new novel by Colorado author Mark Stevens. “There is so much paradox to the idea that the exact same thing that is bringing Frank Ryder so much fame and attention — and upending the sport he loves — is the very same thing that took a human life,” Stevens said in a phone interview from his home in Mancos. Ryder is haunted by the ghost of Deon Johnson, a Black boy he accidentally kills with a fastball when they both were playing little league baseball in Atlanta.