Working as a research assistant in Hawaii sounds like fun in the sun, but there’s big trouble brewing on the Big Island. Someone or something destroyed the environmental experiments in the forest around the Hilihili Research compound. Is it the mythical Kāne ’Ōkāla or unfriendly rivals? It’s up to you, as Nancy Drew, with the help of the Hardy Boys, to uncover hidden secrets amonn the strange whispers that haunt the mountains and forests.