Somebody is stealing the famous winged ponies of Zarvania — and when Maddie and Sebastian try to track them down, the search leads them across deserts, through jungles and into the depths of the diamond mines.
Ms. Barton is a teacher, book artist, and curator who runs Popular Kinetics Press and has published numerous artist book editions since her first book, Beyond the Page, was printed in 1981. Her work is exhibited internationally and is in numerous collections, including The Smithsonian Institution, Library of Congress, Museum of Modern Art, The Getty Museum, and the Victoria and Albert Museum in London.
(librarian note: it is unlikely that the paper artist is the same author as the children's "World of Wishes" books, but I can't find any details to back that up)