Nightshade Island is an island located in the Hundred Isles. Feliandor took the Bile there and became the first Devourer, making the island cursed and dangerous to the Hundred Islanders. It also became covered in fog, making it almost impossible to find. Meilin, Rollan, and Tarik travel to the island to find the two conches that will lead them to Mulop, but while they are there, the curse on the island tampers with their spirit animal bonds, and Rollan has a dream about Feliandor that reveals why the island was cursed. When the three return from getting the conches, Kalani avoids them because of the curse, thinking that they are cursed also ('tapu').