Return of the Stone. Seordag Stories, #15

The Seer loses his stone. A camper finds it and hands it into the museum. Marlene reads about it in the paper and tells the Seer. When the Seer goes to get it back the museum won't give it to him without proof that it is his stone.  Can Seordag and Soley help him get it back?Book 15 in the Seordag Stories series. Seordag Stories is a children's picturebook  sci-fi series of adventures about a cyborg hen and her friends in the Scottish Highlands.