Birds 55 The Case of the Secret Weapon 56 The Case of the Coyote Invasion 57 The Disappearance of Drover 58 The Case of the Mysterious Voice
About the Author and Illustrator
John R. Erickson , a former cowboy, has written numerous books for both children and adults and is best known for his acclaimed Hank the Cowdog series. He lives and works on his ranch in Perryton, Texas, with his family.
Gerald L. Holmes has illustrated numerous cartoons and textbooks in addition to the Hank the Cowdog series. He lives in Perryton, Texas.