Going to Ohia

The Lodgers take Olarm and Orrobe on their first off-planet trip to the beautiful waterworld of Ohia, the homeworld of the Peepyds, a race of colorful mermaid beings just as curious as Olarm, as she makes a new best friend named Thea, and her mean and personally-repressed sister Cynthea, who ends up unknowingly working for Orrobe's uncle Pembroke Tiris, who was a celebrated oil tycoon for his brother until his niece-in-law had the Tiris Corporation shut down by law. As revenge for his ruined and bankrupt life, he seeks to use Cynthea and Thea to capture Olarm and sell her out to the Dark Radicals with the help of a rogue Peepyd named Don Atwater who actually wants to turn Olarm permanently into an unsentient fish as revenge against her HPA father for stopping his plans for turning many oil colonies into waterworlds for what they did to his home reef, at the same time Olarm's parents met, which he intends to continue with stolen tritium nukes from Villains Act warehouses. Thus when Olarm is captured, and felt betrayed, Pembroke is betrayed and drowned and the Lodgers and Heroes Act must save Olarm and stop Atwater.