The Mona Lisa Vanishes

Author Nicholas Day Illustrated by Brett Helquist

Grades 6-8 Ages 10-14

A “witty thriller” (The New York Times) for middle-grade readers about how the Mona Lisa was stolen from the Louvre, how the robbery made the portrait the most famous artwork in the world—and how the painting by Leonardo da Vinci should never have existed at all.

SIBERT MEDAL WINNER • BOSTON GLOBE—HORN BOOK AWARD WINNER • ONE OF THE BEST BOOKS OF THE YEAR: Publishers Weekly, School Library Journal, Booklist, Kirkus Reviews, NPR, The New York Public Library, The Chicago Public Library, The Bulletin of the Center for Children's Books

On a hot August day in Paris, just over a century ago, a desperate guard burst into the office of the director of the Louvre and shouted, La Joconde, c’est partie! The Mona Lisa, she’s gone!

No one knew who was behind the heist. Was it an international gang of thieves? Was it an art-hungry American millionaire? Was it the young Spanish painter Pablo Picasso, who was about to remake the very art of painting?

Travel back to an extraordinary period of revolutionary change: turn-of-the-century Paris. Walk its backstreets. Meet the infamous thieves—and detectives—of the era. And then slip back further in time and follow Leonardo da Vinci, painter of the Mona Lisa, through his dazzling, wondrously weird life. Discover the secret at the heart of the Mona Lisa—the most famous painting in the world should never have existed at all.

Here is a middle-grade nonfiction, with black-and-white illustrations by Brett Helquist throughout, written at the pace of a thriller, shot through with stories of crime and celebrity, genius and beauty.

Available Formats

Trade Paperback 9780593904213
Hardcover 9780593643846
Hardcover Library Binding 9780593643853
eBook 9780593643860
Unabridged Audiobook Download 9780593747629

State Awards

Georgia

2025, Georgia Children’s Book Award, Nominee

Maine

2025, North Star Young Adult Book Award, Nominee

Michigan

2024, YouPer Award, Selection

Nebraska

2025-2026, Meadowlark Award, Nominee

New York

2023, NYPL Best Books of the Year, Selection

Ohio

2024, Ohio Buckeye Children’s and Teen Book Award, Nominee

Pennsylvania

2024-2025, Keystone To Reading Elementary Book Award, Nominee

Tennessee

2024, Volunteer State Book Award, Nominee

Texas

2024, Texas Topaz Nonfiction Reading List, Selection

Wyoming

2024, Indian Paintbrush Book Award, Nominee

Random House Children's Books Teachers and Librarians