Fiction sequels hitting shelves in September include two hurricane gods, warring sisters, raven theft, and more.

The Fire Keeper

by J.C. Cervantes (Disney/Rick Riordan Presents, Sept. 3, $16.99, ISBN 978-1-368-04188-1)

In this sequel to The Storm Runner, Zane Obispo’s seemingly idyllic island life is marred by his learning to control his newfound fire skills, inherited from his father, the Mayan god Hurakan, and the realization that he’s unintentionally put other godborn children at risk by writing about his experiences with the gods.

Five Dark Fates

by Kendare Blake (HarperTeen, Sept. 3, $18.99, Sept. 3, ISBN 978-0-06-268617-6)

This fourth and final book in the Three Dark Crowns series, about warring sisters and queens Katharine, Mirabella, and Arsinoe, brings an all-out war that pits sister against sister, dead against undead, and the betrayed against their betrayers.

The Great Shelby Holmes and the Haunted Hound

by Elizabeth Eulberg (Bloomsbury, Sept. 3, $16.99, ISBN 978-1-5476-0147-9)

Crime-solving duo Shelby Holmes and John Watson unravel the mystery of the flickering lights, eerie footsteps, scratching, and wolfish howl resounding through the Baskerville Estates in this fourth entry in Eulberg’s middle grade mystery series

The Jumbie God’s Revenge

by Tracey Baptiste (Algonquin, Sept. 3, $16.95, ISBN 978-1-61620-891-2)

Baptiste returns to the Trinidadian folklore of The Jumbies as Corinne and her friends work to stop the angry god Huracan from destroying their Caribbean home in this third installment focused on climate change and its effects.

The Little Grey Girl

by Celine Kiernan (Candlewick, Sept. 3, $15.99, ISBN 978-1-53620-151-2)

Following the first in the Wild Magic series, Begone the Raggedy Witches, the old queen and her witches have fled the castle, leaving Mup and her family to move in and begin the process of acknowledging and healing the pains of the past as a powerful ghost cuts the family off from the rest of the kingdom.

Red Skies Falling

by Alex London (FSG, Sept. 3, $18.99, ISBN 978-0-3743-0684-7)

In the second book in the The Skybound Saga, which began with Black Wings Beating, twins Kylee and Brysen are on opposite ends of Utzar, each preparing for what they believe is the same war. While Kylee navigates political intrigue in the Sky Castle, Brysen grapples with growing turmoil in the Six Villages and adjusts to a newfound gift, develops a crush on a mysterious boy, and is shocked by a betrayal.

Top Secret Smackdown

by Mac Barnett, illus. by Mike Lowery (Scholastic/Orchard, Sept. 3, $12.99, ISBN 978-1-3381-4371-3)

The theft of ravens from the Tower of London threatens to ruin Britain and topple the Queen, sending Mac B. to Iceland in this third book in the humorous Mac B., Kid Spy series.

Tunnel of Bones

by Victoria Schwab (Scholastic Press, Sept. 3, $17.99, ISBN 978-1-3381-1104-0)

Ghosthunter Cass and her ghost best friend, Jacob, travel to Paris in this sequel to City of Ghosts, where they must unravel a mystery to quell a frighteningly strong spirit that could haunt the city forever.

Max Einstein: Rebels with a Cause

by James Patterson and Chris Grabenstein, illus. by Beverly Johnson (Little, Brown/Patterson, Sept. 9, $14.00, ISBN 978-0-316-48816-7)

The sequel to The Genius Experiment, finds Max and her Change Makers friends attempting to use their smarts to find solutions to the water crisis while a greedy corporation threatens the kids.

The Minor Third

by Neil Patrick Harris (Little, Brown, Sept. 10, $16.99, ISBN 978-0-316-39187-0)

Violinist Theo Stein-Meyer, who uses his levitation skills in the fight against the villainous Emerald Ring, takes center stage in the third book in the Magic Misfits series. As the Magic Misfits take on a suspicious ventriloquist and his creepy dummy, Theo finds himself drawn to a new friend who causes him to question where he belongs.

Robo-Dodo Rumble

by Tom Angleberger, illus. by Jared Chapman (Abrams/Amulet, Sept. 10, $6.99, ISBN 978-1-4197-3688-9)

In this second book in the Didi Dodo, Future Spy chapter book series, a spin-off of Angleberger’s Inspector Flytrap series, spy-in-training Didi and her reluctant sidekick, Koko Dodo, must save Koko’s bakery from being put out of business by an undercutting Robo Dodo.

Strike Zone

by Mike Lupica (Philomel, Sept. 10, $17.99, ISBN 978-0-5255-1488-6)

This companion to 2006’s Heat follows 12-year-old Little League pitcher Nick Garcia who dreams of being this season’s MVP, throwing out the first pitch at Yankee Stadium, finding a cure for his sister’s lupus, and that one day his immigrant family won’t have to live in fear of the U.S. government.

Don’t Say a Word

by Amber Lynn Natusch (Tor Teen, Sept. 17, $17.99, ISBN 978-0-7653-9771-3)

Kylene Danners is determined to clear her ex-FBI father of an unjust prison sentence in this sequel to the science fiction mystery Dare You to Lie. But investigating in a small town isn’t easy, and rookie FBI agent Cedric Dawson’s undercover mission at her high school escalates from a runaway case to murder.

Momentous Events in the Life of a Cactus

by Dusti Bowling (Sterling, Sept. 17, $16.95, ISBN 978-1-4549-3329-8)

Fourteen-year old Aven Green confronts a new challenge in this sequel to Insignificant Events in the Life of a Cactus: high school. Aven, who was born without arms, struggles to stay true to herself as she faces the overwhelming, often humiliating, and emotional reality of high school and 3,000 students staring at her.

Shatter City

by Scott Westerfeld (Scholastic Press, Sept. 17, $18.99, ISBN 978-1-338-15041-4)

In this sequel to Imposters, set in the same world as the Uglies quartet, Frey takes on the role of her missing twin sister, Rafi, to destroy the forces that created her, but is forced to delay her mission when she becomes stranded in Paz, where citizens regulate their emotions, and the city comes under catastrophic attack.

The Spy Who Loved Ice Cream

by Sam Hay, illus. by Marek Jagucki (Feiwel and Friends, Sept. 17, $13.99, ISBN 978-1-250-18858-8)

Gadget-obsessed penguins Jackson and Quigley must clear their favorite uncle’s name before the FBI (Frosty Bureau of Investigation) locks him away for theft in this second book in the Spy Penguins illustrated chapter book series.

The Vanderbeekers to the Rescue

by Karina Yan Glaser (HMH, Sept. 17, $16.99, ISBN 978-1-328-57757-3)

The Vanderbeekers spend their spring break racing to save their mother’s baking business from city closure in this third book in this middle grade series set in New York City.

The Double Helix

by Trudi Trueit, illus. by Scott Plumbe (National Geographic/Under the Stars, Sept. 24, $16.99, ISBN 978-1-4263-3458-0)

Twelve-year old Cruz Coronado and his friends explore ancient ruins in Petra, Jordan, and search for a puzzle piece left by his mother in this third Explorer Academy book. With Cruz’s father missing and his 13th birthday drawing near, Nebula’s pursuit intensifies.

A Dream So Dark

by L.L. McKinney (Imprint, Sept. 24, $18.99, ISBN 978-1-250-15392-0)

Alice goes deeper into the dark version of Wonderland in the sequel to A Blade So Black, crossing the Veil to rescue her friends and defeat the Black Knight once and for all. Meanwhile, a new player joins the board: a poet capable of using Nightmares to influence the living and raise the dead.

The Mysterious Benedict Society and the Riddle of Ages

by Trenton Lee Stewart (Little, Brown, Sept. 24, $18.99, ISBN 978-0-316-45264-9)

Reynie, Sticky, Kate, and Constance reunite to face dangerous dilemmas when a new Society member joins their ranks and a new threat appears, in this fifth book in the Mysterious Benedict Society series.

Out of Control!

by Elise Gravel (HarperCollins, Sept. 24, $12.99, ISBN 978-0-06235-132-6)

In this third Olga book, Olga uses science to save the day after her pink pal, Meh, becomes a mother and a houseful of mini olgamuses create a giant mess.