Write in secret with the Doctor Who Book Light with UV Pen! Book light comes with a nifty UV pen. * Clip this night light anywhere for easy reading and writing at night! The Doctor is never without a trusty tool handy, whether it"s his anaglyphic 3-D glasses or his Sonic Screwdriver, so why should you face the dark empty handed? * Night time reading and journal writing are possible with the Doctor Who Book Light with UV Pen. The night light can even be clipped directly to your book so you"re not busy trying to find a decent place to put the light! * In keeping to the feel of the popular BBC show Doctor Who , the glow from the light is a secretive blue hue that works with the included UV pen to reveal whatever you choose to doodle, and the adjustable neck on the night light allows for easy reading and writing with mobility. Whether you"re writing in your Doctor Who TARDIS Journal (sold separately) or flipping through an issue of a Doctor Who comic book, you"re going to love the Doctor Who Book Light with UV Pen! * The Book Light includes 2x "CR-2025" batteries. Ages 5 and up.