Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
612-822-4611

  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Thunder and Mercy

Thunder and Mercy

Barr, Jennifer Robin

Hardcover

General Juvenile FictionHistory

Publisher Price: $18.99

ISBN10: 1635923263
ISBN13: 9781635923261
Publisher: Calkins Creek Books
Published: Jul 14 2026
Pages: 368
Weight: 1.00
Height: 1.28 Width: 5.79 Depth: 8.44
Language: English
A dazzling plot with characters who are rich and real and unforgettable.--Lynda Mullaly Hunt, New York Times best-selling author of Fish in a Tree

★ School Library Journal, starred review

Is a hidden diary the key to an unsolved secret from the American Revolution?

It's 1979 and twelve-year-old Theodora Thunder Underwood is dreading her summer vacation once again. Every year, her scientist parents disappear on far-flung scientific expeditions, leaving her with relatives who clearly don't want her around.

But this summer, Thunder is sent to Mount Pleasant, her aunt's historic yet crumbling old mansion outside of Philadelphia once owned by Revolutionary War traitor Benedict Arnold. When Thunder discovers a mysterious diary written by Mercy, a girl her age who lived through the American Revolution, Thunder is plunged into a mystery that involves a shadowy prowler, a hidden ring, and mysterious spies--making her summer far more exciting than she ever expected.

Fast-paced and full of twists, this suspenseful middle grade novel transports young readers between the 1770s and 1970s as Thunder uncovers the truth behind a Revolutionary-era spy network--and discovers the importance of friendship, family, and her own voice along the way.

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