The Island Book Three, The Line Trilogy

In The Island, the compelling conclusion of The Line trilogy, Rachel and Pathik continue their adventure. Will Indigo's firetales about the mysterious island called Salishan prove to be true? Are there inhabitants, and if so, are they friends or enemies? With no way back to where they came from, what price will Rachel and her loved ones have to pay in order to survive where they've landed? Are the risks they've taken, and the people they've lost forever, worth what they find on the island?