Hikili is a Wichis (a species of Petpet unique to the Park) who lives on PukaPooka Island. He serves as a guard on the island, and doesn't like the amount of tourists that the place attracts. During the annual feast, he stole the fire stone in the hopes of getting rid of the tourists.
Look at all you tourists.
You just stomp around and act like you own the place.
You show no reverence for this island.
Why don't you all just go away?