Donald has lost his favorite toy lion and he's desperate to find it before bedtime. Mickey is on the case to help his Clubhouse pal, and with the help of the reader and a few handy Mouseketools, the bedtime mystery is solved. Even the youngest readers will be able to keep up with the action in this Pre-Level 1 Early Reader. MICKEY MOUSE CLUBHOUSE IS HUGE! : The premiere of Mickey Mouse Clubhouse delivered the highest ratings ever for a Playhouse Disney series premiere among Kids 2-5, Girls 2-5,Households, and Total Viewers. It also premiered at #1 among all basic cable networks in its time period for Kids 2-5. Mickey Mouse Clubhouse shows no signs of slowing down as it settles in to its first season. It is the number one show among preschoolers!