Rick Riordan's Percy-Carter crossover story is here – check out the e-book cover

Rick Riordan's short story 'The Son of Sobek,' included in the paperback version of his book 'The Serpent's Shadow,' is out in print form today, and will be released as an e-book June 19.

'The Son of Sobek' is being released as a bonus feature for the paperback version of 'The Serpent's Shadow.'

May 7, 2013

The e-book cover for “The Son of Sobek,” writer Rick Riordan’s crossover short story bringing together the heroes of his two series, was recently revealed. 

The cover for “The Son of Sobek” shows Percy Jackson of the "Percy Jackson and the Olympians" series and Carter Kane of the "Kane Chronicles" series both holding weapons as a wave of water rises behind them in front of what looks like some sort of thicket.

“The Son of Sobek” is being included as a bonus feature in the paperback edition of the latest installment of the "Kane Chronicles" series, “The Serpent’s Shadow,” which hits stores today. “The Son of Sobek” will be released by itself as an e-book on June 19.

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The "Heroes of Olympus" series follows Percy, who grows up on modern-day Earth but is the son of Greek god Poseidon. The "Kane Chronicles" center on Carter and his sister, Sadie, children of an Egyptologist who must contend with the gods of Egypt.

In certain versions of the “The Son of Sobek” e-book, fans will be able to access audio of Riordan himself narrating the story and check out a preview of the eighth book in the “Heroes of Olympus” series, which will be titled “The House of Hades.” That book is scheduled for an October release.

Riordan said part of the fun of writing “The Son of Sobek” was seeing how his two protagonists interacted.

“Carter and Percy are as different as two heroes can get,” he told USA Today. “Percy is kind of impetuous and sarcastic and Carter is very thoughtful and reserved, so when they get together at first it's like oil and water. They don't seem like a very good team at first, but they do have more in common than you might think. It's really about them learning to trust each other and learning to work together. It was fascinating for me to throw the two of them together from two very different worlds and see what happens.”

A sequel to the first film adaptation of Riordan’s Percy books, titled “Percy Jackson and the Olympians: The Sea of Monsters,” is due in theaters this August. On the print front, Riordan is also planning a new series based around on Norse gods.