$6.00 Nickelodeon Dora the Explorer: Dora Says Good Night (Dora the Explorer: Play-a-Sound) BOARD BOOK/SOUND BOOK)-The Dora the Explorer Nightlight Book has an attached nightlight and on-off switch and six sound buttons that children use to enhance a story about Dora the Explorer searching for Osito, her teddy bear. The book is designed for children ages 3 and older.When the switch is turned on, a light illuminates and a sound effect plays. Pressing the buttons activates one of these sounds or music clips:Dora the Explorer says ¡Vámonos!