Here's the description, from Gratz's website:
Thirty days hath September. Seven heroes we remember.
Young Archie Dent knows there really are monsters in the world. His parents are members of the Septemberist Society, whose job it is to protect humanity from hideous giant monsters called the Mangleborn. Trapped in underground prisons for a thousand years, the Mangleborn have been all but forgotten–until now.
Evil genius Thomas Alva Edison and his experiments in the forbidden science of electricity have awakened a Mangleborn in the swamps of Florida. When Archie’s parents and the rest of the Septemberists are brainwashed by the monster, it’s up to Archie and his loyal Tik Tok manservant Mr. Rivets to assemble a new team of seven young heroes to save the world: the League of Seven.
No mention of Native content in that description, but the person who wrote to me noted that one of the main characters is Seminole. You can see here here, on the cover:
Her name, I learned by reading reviews, is Hachi. I also learned it is an alternative history, set in America in 1875. I'm intrigued. I'll try to get a copy and do a review.
Have you read it? What are your thoughts?