In the first book of this series--Endangered--on the planet Estar, the Folke were identified as being intelligent and possessed a Culture of their own. Megs Coggins, the girl who bridged the language gap between them and the rest of the Congress of planets is now the Ambassador. All is peaceful and Estar's population is settling into this new arrangement, until the previous landlords decide to come back and collect the back rent. Will they succeed in taking back what was theirs? Who will survive?