The Royal Book of Oz (1921) is the fifteenth in the series of Oz books, and the first, by Ruth Plumly Thompson, to be written after L. Frank Baum's death. Although Baum was credited as the author, it was written entirely by Thompson. Beginning in the 1980s, some editions have correctly credited Thompson,[1] although the cover of the 2001 edition by Dover Publications credits only Baum. The original introduction claimed that the book was based on notes by Baum, but this has been disproved. Baum's surviving notes, known as "An Oz Book" [2] are known from four typewritten pages found at his publisher's, but their authenticity as Baum's work has been disputed. Even if genuine, they bear no resemblance to Thompson's book.

Sky Island: Being the Further Adventures of Trot and Cap'n Bill after Their Visit to the Sea Fairies is a children's fantasy novel written by L. Frank Baum. A captivating tale by the master of make-believe recounts the further adventures of a little girl named Trot; Cap'n Bill; and their new friend, Button-Bright. Transported by a magic umbrella to an island in the sky, they meet six snub-nosed princesses, discover the King's treasure chamber, and meet Tourmaline the poverty Queen.

The Lost King of Oz, has been considered important throughout human history. In an effort to ensure that this work is never lost, we have taken steps to secure its preservation by republishing this book in a modern format for both current and future generations. This complete book has been retyped, redesigned, and reformatted. Since these books are not scans of the authors' original publications, the text is readable and clear.

A classic in Baum's series of "Oz" adventures, filled with whimsical characters that quickly endear themselves to young readers. 114 black-and-white illustrations by John R. Neill.

A Philadelphia lad returns to Oz and joins forces with Jack Pumpkinhead to rescue Ozma and the Emerald City from conquest.

Ruth Plumly Thompson was hand picked by L. Frank Baum’s estate to continue on the wonderful stories from the Land of Oz because of her delightful and lively writing style. Collected here together are three of her best Oz books carrying on Baum’s delightful series. Journey with the Scarecrow and discover his royal past in The Royal Book of Oz. Adventure with Kabumpo the elephant and Ruggedo the Nome King in Kabumpo in Oz. And in Ozoplaning with the Wizard of Oz the Wizard builds two spaceships. Magical adventure awaits!

In 'The Silver Princess in Oz' by Ruth Plumly Thompson, readers are taken on another enchanting journey to the whimsical land of Oz, where they will encounter new characters, magical creatures, and face thrilling adventures. Thompson's writing style is imaginative and full of lively descriptions that bring the fantastical world of Oz to life. The book is a continuation of L. Frank Baum's original Oz series, staying true to the beloved tale's spirit while adding new elements that keep the story fresh and engaging for both new and returning readers. Fans of fantasy literature will appreciate Thompson's attention to detail and her ability to weave together a captivating narrative rich in creativity and wonder. Ruth Plumly Thompson, a talented writer in her own right, was chosen by the publishers to continue the Oz series after Baum's passing. This selection was based on her exceptional storytelling abilities and deep understanding of the Oz universe. Thompson's dedication to staying true to Baum's vision while adding her own unique touch is evident throughout 'The Silver Princess in Oz.' I highly recommend 'The Silver Princess in Oz' to readers who enjoy classic fantasy literature and are looking for an enchanting escape into a world filled with magic and adventure. Thompson's continuation of the Oz series is a delightful addition that will surely captivate both young and adult audiences alike.