Flight Into Sunrise — Blaze Ward

Finn and Zareen escape from the Frenchman and his Nazi allies in Central Asia. From British India, they attempt to find an alien base, hidden deep in the secret depths of the Tibetan plateau. Nothing, however, can prepare them for what they find when they get there. Or who. Flight Into Sunrise, the culmination of The Air Pirates of Cyrenaica. Be sure to start with Flight of the Cerberus.