• Ransom Riggs, author of the bestselling "Miss Peregrine" series, is releasing a new series called "Sunderworld."
  • The first volume of the series will be published by Dutton Books for Young Readers, an imprint of Penguin Random House, on August 27.
  • Riggs' "Miss Peregrine" novels have collectively sold more than 10 million copies worldwide.

Ransom Riggs' first new series since the million-selling "Miss Peregrine" books will launch this summer.

"Sunderworld, Vol. 1 The Extraordinary Disappointments of Leopold Berry" begins the adventures of a Los Angeles teen who, after his mother's death, has some surreal encounters in his everyday life. 

Dutton Books for Young Readers, a Penguin Random House imprint, will publish "Sunderworld" on Aug. 27.

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"I’ve always been drawn to portal fantasies in fiction," Riggs said in a statement Wednesday. "They feel like invitations to optimistic worlds where, ultimately, joy is possible, if only you can find the key. We’re living through some very heavy, very dark times — we have been for a while — and this story is meant to be an escape — and a respite from darkness."

Ransom Riggs

This cover image released by Dutton Books for Young Readers shows "SUNDERWORLD, VOL. 1: The Extraordinary Disappointments of Leopold Berry," by Ransom Riggs. (Dutton Books for Young Readers via AP)

Riggs' "Miss Peregrine" novels have sold more than 10 million copies.

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The first book in the series, "Miss Peregrine's Home for Peculiar Children," was adapted by Tim Burton into a 2016 film starring Eva Green.