Books like Sal and Gabi Break the Universe

Looking for books like Sal and Gabi Break the Universe by Carlos Hernandez (Science Fiction · grades 4–7)? It’s most often read for its themes of friendship, grief, and family. 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 4–7 reader. See how we judge text difficulty on our methodology page.

10 books similar to Sal and Gabi Break the Universe

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Why each is a match

Diary of a Wimpy Kid950L
Shares themes of friendship, family, and humor and overlapping grades (3–7).
Geronimo Stilton: Lost Treasure of the Emerald Eye530L
Shares themes of friendship, family, and humor and overlapping grades (2–5).
Ivy and Bean580L
Shares themes of friendship, family, and humor and overlapping grades (2–4).
Magnolia Wu Unfolds It Allgrades 3–6
Shares themes of friendship, family, and humor and overlapping grades (3–6).
My Teacher Is an Aliengrades 3–6
Shares themes of friendship and humor, same genre (Science Fiction), and overlapping grades (3–6).
Walk Two Moons770L
Shares themes of friendship, grief, and family and overlapping grades (5–7).
Big Nate: In a Class by Himself500L
Shares themes of friendship and humor and overlapping grades (4–7).
City of Ghostsgrades 4–7
Shares themes of friendship and family and overlapping grades (4–7).
Dog Man390L
Shares themes of friendship and humor and overlapping grades (2–5).
Dog Man Unleashedgrades 3–6
Shares themes of friendship and humor and overlapping grades (3–6).

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