Pitfall by Ross Hughes

Technology is forbidden.
The moon is wrecked.
And dragons terrorise the Peaks every summer when they emerge from hibernation.
The only defence against them is the noble pterodactyl-riders.

With her apprentice ceremony coming up, Erris longs to be one of the legendary pterodactyl-riders.
But what her apprenticeship will set in motion is a chain of events that no one could have predicted, unlocking the secrets of the Pit’s depths, unveiling the enigmatic schemes of mad scientists, cunning mutants and a ruthless AI in a sinister plot against the Peakers themselves

An action-packed, fast-paced, post-apocalyptic sci-fantasy thrill ride of a story about the lengths to which some will go for the greater good, and how far one young woman will go to stop them