The Krybosian Stairpath

Enter a world of wonder deep inside the earth as 11-year-old geologist Madison Terrence follows her pet gopher down a stairpath portal she discovers in her family's cavern. When she descends the Krybosian Stairpath, a mystery from her family's past begins to unravel. She soon realizes her arrival in the interior world of Krybos is no accident. Madison discovers that she's been pulled into a sinister plot to destroy the most beautiful place she has ever seen.