LeapPad Ultra eBook Mr Pencil. LeapFrog created the ultimate interactive reading and writing adventure with Mr Pencil The Colours of Doodleberg Ultra eBook. It features Mr Pencil, a kid friendly character built around a writing and drawing curriculum, teaching letter/number writing, shapes, art and drawing. LeapFrog's LeapPad learning tablets take this Ultra eBook beyond the basic eBook experience to so character spring to life with amazing animations to keep kids engaged. Age from 4 - 7 year. Warning. Not suitable for children under three years.