This is exactly what you want for a kid who's ready for chapter books but not quite sold on reading yet. The treasure hunt hook is timeless, the friendship dynamics are solid, and the sneaky educational sidebars mean they're actually learning while they think they're just reading about pirates.

Common Sense Media calls it a "strong start to the engaging, easy-to-read Fish Finelli series," and they're right—it's got that Hardy Boys vibe but with a modern twist that teaches science and history without being preachy. The 4.5 Amazon rating suggests kids actually enjoy it, which is the whole point.

The mild rule-breaking (trespassing, sneaking around) is all in service of harmless adventure, nothing that'll give you nightmares about your kid becoming a juvenile delinquent. It's the kind of stuff kids fantasize about doing anyway, and here it's channeled into a story about friendship and problem-solving.

Published in 2013, so it's still fresh enough to feel relevant. If your kid likes it, there are more books in the series. Solid pick for reluctant readers, especially boys, though it works for any kid who wants adventure over angst.