Changelings
Publisher: Corgi
Published: Jan 01, 2007
Format: paperback
Number of pages: 336
ISBN-13: 9780552154406
Description: In Powers That Be, Power Lines and Power Play Anne McCaffrey and Elizabeth Ann Scarborough told the story of a sentient planet, Petaybee. In Changelings,the first of a new series, they return to Petaybee. 

Ronan and Murel are the twins of Yana Maddock and Sean Shongili. Born on Petaybee, their destiny is intertwined with that of the planet. Like their father, Ronan and Murel can transform into seals. They can also communicate telepathically with! the planet's creatures. 

After their transformation is witnessed by a visiting scientist the twins face great danger and need a refuge where they can escape capture. Meanwhile Petaybee is changing - and much faster than an ordinary planet's natural evolution. A new landmass suddenly rises from the depths of the sea and Sean heads out to investigate it. But the newly unstable region holds the potential for disaster... 

'Fast-paced adventure' Publishers Weekly 

'Exciting and generously laced with humour... the characters and their interactions are so well realized as to utterly charm readers' Booklist
Notes: Source title: Changelings (The Twins Of Petaybee)