When urban miners discover what appears to be a centuries-old, man-made chamber 600 feet below the streets of New York City, they unwittingly unleash an unnamed entity with designs on dominance... an entity that will soon answer to the name SAMHAIN. Join the original Ghostbusters in this double-sized annual that will also sow the seeds for Crossing Over! ·Prelude to 2018's massive comic book crossover event-GHOSTBUSTERS CROSSING OVER! ·Featuring the return of the critically acclaimed and fan-favorite creative team of Erik Burnham, Dan Schoening, and Luis Antonio Delgado!