The Howler

The Howler is the 7th book in The Nightmare Room series. It was first published on the 1st of May, 2001. The book follows Spencer Turner, who tries to communicate with the ghost of his dead cousin.

Blurb
You hold in your hand the key to a shadow world of shivers and screams. Take a step away from the safe, comfortable world you know. Unlock the door to terror. There's always room for one more in... The Nightmare Room. Spencer Turner just purchased a cool new gadget called the Howler. It's supposed to allow Spencer to pick up the howls of ghosts and spirits. Spencer would love to communicate with the spirit world. He can't wait to see if it works. Unfortunately, Spencer soon hears his  own  howls of horror -- because when he turns on The Howler, he opens a channel to  The Nightmare Room.