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The League of Seven

Book One in

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.

Starscape | August 2014 | Ages 9 and Up


“Action, banter, and steampunk-style tech aplenty…an appealingly fast-paced trilogy opener.”

—Kirkus Reviews

“Gratz has created an imaginative world with appeal far beyond its immediate middle-grade market.”

—Publishers Weekly

“This hybrid of steampunk and alternate American history features a hell-raising girl’s school, Atlantis, and three highly likable leads in a yarn rip-roaring from start to finish.”


“This steampunk love-letter set in an alternative 1870s America packs in quite a lot of action.”

—School Library Journal

“Perfect middle-grade fantasy. Lots of action, lots of battles, lots of icky monsters, lots of fun.”

—Bonnie Kunzel, YALSA Past-President

“What else can I say? The book has robot ninjas, rayguns, mind-control, and electricity cannons. A certain must-read for all in need of a great story.”

—Travis, Age 16, YALSA Teen Top Ten Reviewer


2015 SIBA Young Adult Book Award Winner
2016-2017 North Carolina Elementary Battle of the Books List