Bullbone Island
From The Fifth City Wiki
"They say that not all the bones are from bulls, and the trees dance in the pale glim-light."
Bullbone Island is part of the Southern Archipelago. It's mainly populated by mandrakes and beetles. It is hinted that it may have been part of the First City. The island has only one human resident, a recent exile from London who chose to leave after discovering a court secret.
Most of the island's visitors are sponsored by the Dilmun Club's scientific expeditions.
