In 1889, when Hans Meyer reached the highest point on Kilimanjaro, he saw across the caldera an opening that looked suspiciously artificial. When Walter and Eleanor Gresham hear about it, they decide it would make the perfect goal for an expedition in their new ship Endeavor. What they find upends all thinking about Earth history and what happened during the War in Heaven. Things really begin to get exciting when the base begins to wake up, and sends out an alert to… someone else.

“High tech Neanderthals? Are you kidding me?”
– Spoiler Alert