Dysnomia: Outcasts On a Distant Moon, Paperback

A young woman named Layla sets out to prove herself. Strong-willed and courageous, she is determined to show that she can do anything a boy can do. Along her journey, she finds herself face to face with danger, adventure, and mysterious forces. A devious character named Nilerm traps Layla and her friends and they are driven off the edge of a cliff into a mysterious new world underground. They realize that they must do all they can to find the courage to confront danger if they are going to find their way back home.