Maxim Gunn and the Sun Fortress

The land, a forgotten corner of Central America washed by the Pacific Ocean where a lost tribe carries out ghastly rituals to appease their Sun God.
The fortress stronghold, abandoned to the ghosts and demons of a time before history, feared by all except the Priests.
The Princess, heiress to a European principality, kidnapped by terrorist for ransom - or worse.
Maxim Gunn and a Mexican aristocrat, Sebastian Civantos, join forces in a desperate attempt to rescue her and find themselves in a nightmare struggle where the old and new worlds meet.