Rovio, the folks behind the popular Angry Birds franchise, are about to unleash something special for Halloween as the attached video shows. Included will be an interesting guest! Who could it be?

Take a look:

According to Rovio:

It was a dark and stormy night as the Angry Birds’ newest adventure begins. The murky woods has spine-chilling creatures lurking in the shadows, but that won’t stop the Angry Birds. As the birds continue deeper into the forest, a big surprise awaits them. What could it be? Stay tuned for more! Squawk!

Whether this update is coming to Angry Birds, Angry Birds Seasons, or Angry Birds Rio remains to be seen. However, we’re betting on Angry Birds Seasons. After all, when this first sequel to the popular franchise arrived in October 2010, it included a “Treat or Treat” theme. Regardless, we expect this new update very, very soon.