Third-grader Shelly Siren and her friends Echo, Kiki, and prima donna Pearl have just started school at the prestigious Trident Academy, where they get their sparkling tails tangled up in plenty of adventures. Join this fin-tastic foursome, along with other fantastical under-the-sea characters, as they navigate the waters of everyday life.

This paperback bind-up includes Trouble at Trident Academy and Battle of the Best Friends.