One week before Halloween, a zombie horde dozens strong will gather at the Museum of Fine Arts, St. Petersburg and burst into dance.

Two days later, a different horde of zombies will meet at Ferg’s Sports Bar down the road and erupt into a dance of their own.

The zombie hordes will look a lot alike. They’ll dance to the same song — Michael Jackson’s Thriller — and will even include some of the same dancers.

But make no mistake: St. Petersburg’s two zombie hordes are at war.

Ten years after the first mass Thriller dance debuted in St. Petersburg, kicking off a Halloween tradition that’s raised at least $17,000 for charity, organizers are engaged in a simmering feud, trading accusations of deception, intolerance and subterfuge.

Read the full story at the Tampa Bay Times.