Books with title The Unthinkable Hybrid: The Dark Side of Paradise

The year is 1956. Betty Jo and Johnny Carlson have discovered a frightful secret... a monster roams the lonely, desert hills outside their small, California town! Along with their timid friend 'Skip' Walters, and the eccentric Professor Alfred Willoughby, Betty Jo and Johnny must unravel the mystery of the monster before the evil forces that spawned him arrive for a showdown!

Betty Jo and Johnny Carlson have discovered a shocking secret - a mutant monster stalks the lonely, desert hills outside their small, California town! Together with their friend, "Skip" Walters, and the eccentric Professor Alfred Willoughby, the Carlson kids must solve the riddle of the monster before the evil forces that spawned him arrive for a showdown!