The Last Dragonrider. Dragonrider, #0

The Last Dragonrider is a prequel to the other Dragonrider books. The Dragonriders of the Nuhysean Army fly huge gliders, the closest they can get to the legendary creatures they were named after. In the middle of a brutal civil war, a young Dragonrider called Neeru discovers some mosaics in a ruined temple that could upend everything they thought they knew about the dragons... and themselves. Neeru soon learns that some of her leaders would rather the discovery remained secret.
Who can she trust when her country is divided against itself?As the war ends, tensions persist. An older and wiser Neeru returns to the temple to find the mosaics destroyed. Now that she's the only witness to them, can she find out what really happened to the dragons and how to bring them back?