"Medusa". A mysterious ancient statue discovered by archaeologists in an underground African temple. Perhaps this artifact is the only key to a mysterious tr...

A group of biologist Emily Pambridge disappeared without a trace in Africa. Perhaps the scientists became victims of bandits or rebels? However, Emily's frie...

Just a few weeks after his sensational return from the City of Rainmakers, Karl Friedrich Donhauser, who calls himself the son of the great naturalist Wilhel...

This is a story about a man named Karl Friedrich Donhauser, who called himself the son of the great naturalist Wilhelm von Humboldt. Together with his faithf...

High in the Bandiagara Mountains in French Sudan (modern Mali), ethnographer Richard Bellheim in October 1893 discovered a city abandoned for many centuries ...

Twelve years after the devastating eruption of the Krakatoa volcano in the strait between Java and Sumatra, the country still cannot find peace. A yellow fog...

“Did Karl Friedrich von Humboldt really build a time machine? Can he make sure that the assassination attempt on our beloved emperor does not take place?” as...