Moomin's lift-the-flap peekaboo Moomin's lift-the-flap peekaboo. Spot's lift-the-flap peekaboo Animals lift-the-flap book Lift-the-flap peek-a-boo Moomin's lift-the-flap hide and seek Usborne lift-the-flap book On lift-the-flap pages Baby's very first lift-the-flap peek-a-boo A lift-the-flap book