The Sinbad Valley is remote. Steep mountains. Thick bush. A valley that does not welcome visitors. Oligosoma pachysomaticum does not mind. At twenty to twenty-four centimetres in length, it is a large, robust skink. Dark brown to greyish-brown colouration features pale flecks and stripes that provide camouflage among rocks. Belly is pale cream. Eyes are dark and watchful. A lizard that has learned to live where the map ends. This is a skink of the remote valley. Found only in the Sinbad Valley in Fiordland, a rugged valley surrounded by steep mountains. It basks on sun-warmed rocks and logs, soaking up heat that fuels its hunting. A lizard that lives where few humans go. Confined to a single valley in heart of Southern Alps. Biologically, the Sinbad Skink is viviparous, giving birth to live young. Females produce two to four offspring each year. A slow reproductive rate that makes species vulnerable to population decline. Young are born in late summer and are miniature versions of adults. Independent from birth. A slow return. A long wait. One of New Zealand's rarest lizards. Entire population confined to a single valley. Threatened by climate change, predation, and habitat loss. A lizard that has nowhere else to go. Habitat loss from climate change is primary threat as warming temperatures reduce montane habitat. Also threatened by predation from introduced rats, stoats, and cats. Classified as Nationally Critical, with fewer than 500 individuals remaining. To see a Sinbad Skink is to see a lizard that exists nowhere else on Earth. A creature of the remote valley. A survivor of the Fiordland wilderness. Its future depends on protection of habitat and control of predators. The valley is quiet. The skink basks on a sun-warmed rock, dark against the grey stone. It does not know it is rare. It does not know it is confined. It just basks. That is all it can do.