The undead have come to Starbucks.

The Seattle-based coffee chain unveiled the Zombie Frappuccino Thursday morning. It'll be available through Oct. 31 in the U.S. and Canada, while supplies last.

The Halloween-themed drink is made of tart apple- and caramel-flavored Frappuccino Crème and topped with pink whipped cream “brains” and red mocha drizzle. The company described the color of the drink as "ghastly green."

A 12-ounce Zombie Frappuccino costs $4.75-$4.95, depending on the market, according to the company.

With the Zombie Frappuccino, Starbucks is trying to mimic the success of its runaway hit, the Unicorn Frappuccino, a bright pink, sweet-then-sour drink which was a social-media darling in April.

The Zombie Frappuccino isn't the chain's first foray into All Hallows' Eve beverages. In 2014, Starbucks served up the Franken Frappuccino and in 2015 and 2016, Frappula Frappuccino, allusions to Frankenstein and Dracula, respectively.

More:Could this be the first look at Starbucks' holiday cups?

More:Big mall operator sues Starbucks over Teavana closures

More:Why did Starbucks shut down its online store?

“When brainstorming a new Frappuccino flavor for this Halloween, we started by thinking about a Halloween party and monster mash,” said Jennica Robinson, who's on the Starbucks beverage development team. “We had already invited Frankenstein and vampires to the party, so we came up with another monster that could join the bash.”

The inspiration for the apple caramel taste came from dipped caramel apples, a traditional fall and Halloween treat.

Reaction on social media was mixed.

Some people thought it was bloody good:

Others thought it should return to the grave.

Zombies remain a popular trope in Hollywood with TV shows like "The Walking Dead," "iZombie" and "Z Nation."

Starbucks also is selling a Mummy Cake Pop, a vanilla cake Birthday Cake Pop with thin strips of white icing that look like bandages, and a Day of the Dead Cookie, shortbread iced to look like a skeleton.

Starbucks stock was $54.30, up 14 cents or 0.26% in pre-market trading.

Follow USA TODAY reporter Zlati Meyer on Twitter: @ZlatiMeyer