The Girl of Ink and Stars by Kiran Millwood Hargrave
Forbidden to leave her island, Isabella dreams of faraway lands her father once mapped. When her best friend disappears, she’s determined to be part of the search party. Guided by an ancient map and her knowledge of the stars, Isabella navigates the island’s Forgotten Territories.
This is a beautifully written book with a very brave and strong-minded heroine encountering all the dangers on a mythical island, ruled by a cruel and selfish despot. There are genuinely terrifying monsters and natural dangers to overcome – Isabella has to actually enter the inside of a threatening volcano. For all those who enjoy fantasy and adventure.