Rare Out of Print The Secrets of Droon Chapter Books: Lot of 2 Books by Tony Abbott #13 & #19 Kids Reposhing this item I purchased from @oodlezofoddity. Loved it, but ready to rotate for something new. Only 13 (The Mask of Maliban) and 19 (the Coiled Viper) are available. The Mask of Mailban has the number 9 written on front cover for some odd reason as shown in photo. Otherwise these 2 books are in very good condition. Questions? Leave a comment below!