‘Stranger Things’ Fans Sniff a Lab-Monster in the Making “behind the closed doors” in Season 5

After a decade-long journey into the eerie waters of Indiana, Stranger Things fans are stacking up their ammo once and for all to assemble the avengers of Hawkins to bring the endgame of Vecna. Having already locked horns ferociously with the demogorgons, mind flayer, demodogs and demobats…