Books like The Lost Library

Looking for books like The Lost Library by Rebecca Stead & Wendy Mass (Middle Grade Mystery · grades 4–8)? It’s most often read for its themes of mystery, books, and secrets. The 10 titlesbelow are the closest matches in the ReadingList database — each scored on shared themes, genre, and reading level, and each linked to the curricula, states, and grades where it’s assigned, with primary sources.

These are reading-level matches, not just topical ones — so the picks stay grade-appropriate for a grades 4–8 reader. See how we judge text difficulty on our methodology page.

10 books similar to The Lost Library

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Why each is a match

The Liars Societygrades 3–6
Shares themes of mystery, secrets, and friendship, same genre (Middle Grade Mystery), and overlapping grades (3–6).
A Strange Thing Happened in Cherry Hallgrades 3–6
Shares themes of mystery and friendship, same genre (Middle Grade Mystery), and overlapping grades (3–6).
The Sherlock Societygrades 3–5
Shares themes of mystery and friendship, same genre (Middle Grade Mystery), and overlapping grades (3–5).
Goosebumps: Welcome to Dead Housegrades 3–7
Shares themes of mystery and friendship, same genre (Middle Grade Mystery), and overlapping grades (3–7).
Final Word (The Winterton Deception #1)grades 3–7
Shares themes of mystery, same genre (Middle Grade Mystery), and overlapping grades (3–7).
Fowl Playgrades 3–6
Shares themes of mystery, same genre (Middle Grade Mystery), and overlapping grades (3–6).
Hannah Sharpe, Cartoon Detectivegrades 3–6
Shares themes of mystery and friendship and overlapping grades (3–6).
Magnolia Wu Unfolds It Allgrades 3–6
Shares themes of mystery and friendship and overlapping grades (3–6).
Under the Surfacegrades 7–12
Shares themes of mystery and friendship and overlapping grades (7–12).
What Happened to Rachel Riley?grades 6–8
Shares themes of mystery, same genre (Middle Grade Mystery), and overlapping grades (6–8).

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