Held prisoner by infamous Cardassian scientist Crell Moset, who plans to use their Sky Spirit-enhanced DNA to create a super species, Chakotay and his sister, Sekaya, struggle to escape, while a Changeling, masquerading as Chakotay, returns to Voyager, where his increasingly odd behavior places the entire crew at risk. Original.
This book is part of the Star Trek: Voyager: Spirit Walk Books series and is book #2 in the series.