What does the Hero Twins myth have to do with ALMOST TWINLESS?

In addition to the myth’s relevance to a story set in a Central American immigrant community, I was drawn to the myth’s resonance with specific aspects of the story—the inspirational nature of sports and the arts to kids this age (going back to ancient times), an underworld of gang members and police officers, the death of children in a fire, and the life-saving capacity of dance. I hesitated to use the myth because I am not Maya, and because of the technical/craft challenges of doing so in a way that served the story. What kept me coming back to the myth in subsequent drafts was its resonance to two concerns of the story-how the “the sins of the fathers fall on the children”, and what it takes to “make a good human?”