Hyperlinkz Book 1: Digital Disaster

It's a Long Way Back to Normal.
Austin and Ashley Webster are normal 12-year-old kids, living in Normal, Illinois. But things get very "ab"normal when an odd digital camera transports them into the wild, wild world of the Internet.
Soon they're hopping from website to website, searching for their Aunt's Jessica's lost prize-winning beagle, Applet. From the Titanic to the Apostle Paul's shipwreck, they're really there
But things get "really" wired when they run into the mysterious Mattie Blankenskrean, who's trying to wipe out sites she doesn't like. And she's not going to let the kids get in her way. Can Austin and Ashley find Applet and make their way back to Normal-before Ms. Blankenskrean reprograms the truth?