Description
Harry and Doug investigate when special bookmarks begin to disappear while their class is busy studying poetry and running their own post office.
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When the post office has donated a real mailbox to room 3B, everyone gets jobs as sorters, stackers, and carriers. ZuZu is in charge of the misaddressed, or dead, letters. But Harry discovers that a thief is using the mailbox for something other than letters. Will he sort out what?s going on? Or will Harry deliver some horribly wrong conclusions?
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