Fish Kid and the Lizard Ninja by Kylie Howarth

There's a new superhero on the block, with super fishy powers.

Plucked from school and plonked on a boat, Bodhi is now a world away from home and friends. Boredom soon kicks in whilst his parents are busy studying global warming and gross Galapagos sea cucumbers. When a prank by the skipper's daughter (Emely) goes revoltingly wrong, she and Bodhi find themselves lost on a deserted island nose to snout with a terrifyingly ugly reptile. The initially feared marine iguana soon protects the kids and ultimately helps Bodhi discover his very own super powers. Faster than a speeding mullet … stronger than a bull shark … it's Fish Kid! But before Fish Kid and his trusty sidekick can even consider saving the world, they'll have to save themselves. Will Bodhi and Emely ever see their parents again?