The Secret of the Fortune Wookiee

The Secret of the Fortune Wookiee is the third book in the Origami Yoda book series by Tom Angleberger, and was originally published on August 7th, 2012 by Amulet Books.

Summary
Is it possible to have a case file without Origami Yoda?

With Dwight suspended, McQuarrie Middle School is missing its most famous attendee: Origami Yoda. And no Yoda means no case file mystery to solve. But just as Tommy wonders if he'll ever find anything interesting to write about again, something BIG happens. Something BIG and HAIRY. It's a Fortune Wookiee, a paper fortune teller in the form of Chewbacca. Sara brings it to school as a gift from Dwight, and it seems to give advice that's just as good as Yoda's. Mysterious it is!

Tommy, Kellen, and Harvey are on the case. And when their classmates start having strange "Dwight Sightings" (sightings of Dwight in which he is Yoda-less and acting WAY too normal), the boys have two mysteries to solve. The closer they get, the more possible it seems that Origami Yoda will be back...