Download or read book The Missing Platypus written by Ellie O'Ryan and published by . This book was released on 2012-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "A spy mission gone terribly wrong causes Agent P to disappear! Will Perry ever make it back home? Or will Phineas and Ferb never see their pet platypus again?"--Amazon.com.