The Fire Thief by Terry Deary
Prometheus is on the run from an avenging eagle and finds himself escaping to Eden City in 1858. His new friend Jim is a young orphan and petty criminal who `relieves' the wealthy of their worldly possessions. But two fugitives together means double trouble as the frenetic action jumps from Mount Olympus to the seedy taverns of Dickensian Eden City. Will Prometheus's soft spot for humans in need betray him to the deadly eagle?