G A Henty was a favourite author of mine,as a schoolboy & teenager.I still recall a novel of his about people finding and retrieving Aztec or somesuch treasure from South America-----gripping stuff !
               A pity,IMHO,that the young men of today don't spend more time reading those sorts of books (and thus stimulating their imaginations) ,instead of spending 18 hours a day in their stuffy bedrooms playing mindless computer games (and with themselves !).