← All Books mystery Middle Grade Novel Fully Reviewed

The Goldfish Boy

by Lisa Thompson

An anxious boy's surveillance notebook becomes the only witness when a toddler disappears next door — a tender, tightly crafted middle-grade mystery about OCD, grief, and the slow work of starting to heal.

Kid
66
Parent
73
Teacher
72
Best fit: ages 10-12 Still works: ages 9-14 — younger sensitive readers benefit from adult co-reading; older readers still find craft and emotional material worth their time Lexile 750L

The story

Twelve-year-old Matthew Corbin hasn't left his house in weeks. His OCD keeps him upstairs, scrubbing his hands and recording every neighbour's movement in a careful notebook. When the toddler next door vanishes in a single unobserved minute, Matthew realises his compulsive log may be the closest thing to a witness the police have. Alongside Melody Bird, the graveyard-loving girl from across the road, he works through a rotating list of suspects — while, quietly, the buried grief at the heart of his family begins to surface.

Age verdict

Best fit 10-12. Works for strong readers aged 9-13 with guidance for sensitive readers.

Our take

Literary craft book with adult-legible depth: parents and teachers will prize it higher than most kids do, though motivated middle-grade readers still find a real heart-punch mystery underneath.

What stands out

Each audience's top 3 dimensions. Out of 30 scored per book.

👦

Kids love

  • Heart-punch Exceptional

    Three stacked emotional peaks in the final third — a private breaking-point scene, a long-buried family truth finally spoken aloud, and the resolution of the missing-toddler thread — each land hard because Thompson has been climbing that staircase for hundreds of pages. Similar to Bridge to Terabithia and Wonder for precision-per-tear.

  • Character voice Strong

    Matthew's first-person voice is one of the most distinctive in recent middle grade — count-obsessed, parenthetically digressive, deeply specific, similar to Wimpy Kid for voice distinctiveness but with Wonder-level craft. Melody's graveyard-enthusiasm and Dad's clipped three-word speech are also calibrated. Voice is the book's signature.

👩

Parents love

  • Emotional sophistication Exceptional

    Three-stage slow-release of the buried-grief backstory across seventeen chapters, dramatic irony about a father's absence reading as rejection rather than love, and the refusal of a 'cured' ending all operate at the top of middle-grade emotional craft. Similar to Bridge to Terabithia for sophistication-per-page.

  • Writing quality Strong

    The writing is craft-forward without showing off — sentence length is calibrated to emotional state, the Wallpaper Lion destruction achieves near-poetic restraint, and the mermaid-gravestone scene delivers theme through imagery rather than statement. Similar to Wonder and The One and Only Ivan for literary care.

🍎

Teachers love

  • Empathy & self-awareness Exceptional

    Direct inside-access to a mental-illness narrative builds peer empathy that few middle-grade books achieve; the father's grief-driven absence builds empathy for adults with hidden pain; Melody's graveyard-love normalises unconventional grieving. Similar to Wonder and Out of My Mind for empathy construction; outperforms most issue-driven middle grade.

  • Mentor text quality Strong

    The first-chapter voice hook, the 12:55 p.m. blank page as absence-as-tension, and the stacked Wallpaper-Lion-destruction / mother's-confession sequence as emotional sequencing are all textbook teaching anchors. Similar to Hatchet and Holes for craft-instruction density.

✓ Perfect for

  • Thoughtful 10-12 year olds who love mysteries with real emotional weight
  • Kids who see themselves in anxious or detail-obsessed characters
  • Readers graduating from light mysteries who are ready for more depth
  • Families looking for an age-appropriate frame for mental-health conversations
  • Teachers seeking a mentor text for voice-driven first-person narration

Not ideal for

Very sensitive younger readers who find sustained anxiety upsetting, or kids seeking fast-paced action-per-page thrills. The backstory of an infant's death and the scenes of compulsive washing to the point of bleeding are emotionally heavy.

⚠ Heads up

Mental health Heavy grief

At a glance

Pages
320
Chapters
38
Words
70k
Lexile
750L
Difficulty
Moderate
POV
First Person
Illustration
None
Published
2017
Publisher
Scholastic

Mood & style

Tone: Bittersweet Pacing: Measured Weight: Heavy Tension: Mystery Puzzle Humor: Gentle Wit

You'll know it worked when…

Readers drawn to voice and interiority finish fast; readers wanting big action may stall in the suspect-cycling middle.

More like this

Same genre, similar age range. Ranked by kid score.

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