Spooky Supernatural or Eerie Extraterrestrial?

What's the source of the Stowell Strangeness?

To educate themselves on the weird goings-on at Stowell Elementary, the Bureau steps back in time - by sending our heroes back to school! Encountering indifferent students and a conspiracy crackpot, Rain, Sean, and Stone may be out of their depth!

Aliens, no problem, but hair-raising haunts? Who're they gonna call?

Facing floating furniture, strange signs, and a murderous mannequin, it's a race between the Xplorers and team X to identify THE GHOSTLY PRESENCE!