<p/><br></br><p><b> About the Book </b></p></br></br>A field trip to the zoo is fun for Cam Jansen and her classmates--until lunchtime. Everyone else's sandwich is safely delivered, but Danny can't find his anywhere. Only Cam and her amazing memory can crack this mystery. Full color.<p/><br></br><p><b> Book Synopsis </b></p></br></br>A field trip to the zoo is fun for Cam Jansen and her classmates--until lunchtime. Everyone else's sandwich is safely delivered, but Danny can't find his anywhere! Only Cam and her amazing memory can crack this mystery.<p/><br></br><p><b> About the Author </b></p></br></br><p>David A. Adler is the author of more than 175 children's books, including the <i>Young Cam Jansen</i> series. He lives in Woodmere, New York.</p>