Mandie and the Long Goodbye

is the thirtieth book in the Mandie series.
==Book Description==
As the Christmas holidays wind down, Mandie is shocked to learn a turkey has been stolen from Aunt Lou's oven. While searching for the missing bird, Mandie and her friends uncover another mystery--and then another, and another. And when Dr. Woodard disappears, things get very serious...and dangerous!
(Description from Amazon.com)