Saga stresses a realistic treatment of the characters: Unlike other series, the protagonists of the Saga not only live their lives in fullness of adventure and excitement, but also are born and die as in real life. The novels allow the reader to accompany the vicissitudes of mankind through family members of the first protagonist (the aviator Miguel Angel Aznar de Soto), who is thrown from the contemporary period, after an adventure in search of 'flying saucers' in the Himalayas, to an unlikely but highly suggestive Venus' Jurassic, and finally to five centuries in the future with the Earth on the brink of a dreadful World War and the shadow of an even more horrific alien invasion looming.