On the planet of Petaybee, when a visiting scientist discovers the shapeshifting talents of the Shongili twins, who are able to tranform from human to seal and back, the twins are in danger of kidnapping and must flee their home.

In Changelings, bestselling authors Anne McCaffrey and Elizabeth Ann Scarborough returned to the sentient planet Petaybee with a story of growth and transformation in the face of deadly new threats. The telepathic, shapeshifting twins Murel and Ronan found that Petaybee had plans for them as well. Now those plans begin to bear fruit with fresh possibilities . . . and dangers.

Now that Petaybee is forming a new equatorial island,...