A Map of Stars

Robbo and Tai help a Maori navigator find the Black Pearl she has been seeking for centuries. And thanks to the pearl, the true identity of the Sea Born is finally revealed.

Maori navigator Te Ura storms into the cafe and really shakes things up. She is angry that she cannot find the legendary Black Pearl, and really angry because her mutinous sailors don't want to search for it any more. Robbo and Tai go diving for the precious pearl and are led to its hiding place by a school of sharks, but when they present it to Te Ura, Robbo takes all the credit.

When Te Ura hears how the sharks helped him out, she tells them it can only mean one thing - Robbo is the Sea Born. The power and glory quickly goes to Robbo's head and he manages to fall out with just about everyone and even banishes Chloe from the cafe. With friendships ruined and Robbo not looking particularly heroic, Te Ura gets suspicious. Have they got the right man?

It seems that only a return visit from the sharks can show Te Ura and the gang who the real hero is, and finally reveal the true identity of the Sea Born.