Rainbow Fish is curious about the deep unfamiliar underwater canyon along the edge where he often plays with his friends. Octopus dissuades Rainbow Fish from this pursuit, however, in his unflattering descriptions of the canyon dwellers.
However, when a strong current pulls off Rainbow Fish’s last shiny scale and carries it down the canyon’s depths, curiosity gets the better of the little fish, and he succumbs to the lure of the unknown realm.
With the exception of one grumpy inhabitant, Rainbow Fish finds out that his deep dwelling neighbours are helpful, kind and unqiue, as they help him find his lost scale.
This tale flips the common misconception that anything that is foreign or unknown must be scary or negative. It also illustrates how the courage to seek to discover the truth for oneself, though potentially risky, can be the only way to dismantle such destructive myths.