Last seen hopping a stage … (coach) and finding his hop in Once There was a Bull … (frog), our hero is now on an eye-popping eating binge trying to cure his insatiable appetite. Woven through the western town of Ravenous Gulch, the story leaves a cast of many hopping mad. However, just as things look bleak, transitive and intransitive verbs turn the tables and take Bullfrog on another adventure. Bullfrog Pops! is part of Rick Walton’s tremendously successful Language Arts series..