Alex does die. In the book Dragon Ghosts which came out today, they had a funeral for him and dug a grave in the outskirts of Grimere. So sad. 😭😭😭😭😭😭😭😭 I can’t say i’m Happy.
Sky, Thisbe, and Rohan get together. Maiveen Taveer is a descendant of the Taveer royal family. Rohan is a descendant of the Suresh family. The volcanoes in fact, are connected and at the end, Sky gets back to the Island of Fire through the volcanoes but Thisbie and the rest of the rescue group also go through the volcano but when Thisbie is nocked unconscious, they take the wrong exit. They are transported to another place. Maybe America?
Also, the Revenir is 99.99% dragon. She even has wings. The ghost dragons help the Artiméans and help them get out.