The Super Sidekicks. Book 2

Being a kid who's a superhero sidekick still isn't as fun as you think in the second amazing adventure from New York Times bestsellingauthor, Gavin Aung Than. The Mother of the Seas is sick of humans using the oceans as a junkyard, so she decides to give the land dwellers a taste of their own medicine. Prepare for an unbelievable underwater menace that threatens to destroy the entire world!