Gravonax Island was an island in the Outer Hebrides. During a war, the British Army tested a new form of chemical weapon, Gravonax, on the island, destroying all life on it. The island was later decontaminated. Sibley Hall was located there. (AUDIO: Night Thoughts)
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.