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Leo's gift for seeing ghosts feels more like a curse. But when his loved ones start turning into zombies, he's the only one who can save them.

When a cannon shoots their ship out of the sky, the gang agrees to help an American inventor fight the fire-breathing monster attacking his town.

Leo and friends head to Germany in search of the fabled Brotherhood. Instead, they find a "Nicht Mart" who delivers bad dreams.

Leo's compass directs the airship to a desolate Italian town where the locals can see ghosts -- including one who turns spirits into stone.

While investigating sightings of a strange monster who steals children's souls, Leo and the gang unearth a far more sinister threat.

The team braves a blizzard to find a portal to Quetzalcoatl's world. But striking a deal with a mythical wolf is the only way through it.

Stranded without a ship and still missing Alebrije, the gang tumbles into foggy London and uncovers a plot that's robbing orphans of their teeth.

Determined to locate the Brotherhood, Leo steers the ship to a Japanese village where monsters attack -- and normal rules no longer apply.

In a bid to strengthen their coven, Baba Yaga and the immortal Nu Gui summon Marcella to a cave in China that's crawling with terra-cotta soldiers.

Soon after Leo brings a creepy-looking doll aboard the ship, members of the team start going missing ... and Leo starts talking to sugar skulls.

Marcella helps Alebrije remember where he lost the Esfera. Turns out, it's back in Mexico, where an undead priest is holding it hostage.

When Baba Yaga sends a Golem after one of their own, the gang slips through a portal to the future to save their friend -- and the world.

With the future of the world at stake, Leo and the Brotherhood wage an epic war against Quetzalcoatl and his Legions of Evil.