Further extending its library of digital book titles, Warner Bros. Consumer Products and New York-based digital publishing house ScrollMotion have launched four new interactive titles in the Scooby-Doo! You Play Too Books series for iPad.

Three titles (Scooby-Doo and the Werewolf, Scooby-Doo and the Creepy Chef, and Scooby-Doo and the Opera Ogre) come in a new Storybook app format, while the fourth, Stickers with Sounds, is a sticker activity book app that allows kids to make their own Scooby scenes using customizable stickers with sound effects and supplied animated backgrounds while helping Shaggy and Scooby escape a haunted mansion.

Each Storybook app features narration, sound effects, record-your-own audio, puzzles, digital coloring pages and hidden Zoinks points which are redeemable for exclusive Scooby-Doo games, videos and downloads at http://zoinkspoints.kidswb.com.

The new additions bring the total number of apps in the Scooby-Doo! You Play Too Books series to seven. The third, Fall Fright: A Scooby-Doo! You Play Too Book, was launched in December 2011.