With a mill history dating back to the 19th century, it is likely that there have been more than a few incidents that could cause things to go bump in the night. That’s what the folks at Slater Mill are betting on with their new Paranormal Pawtucket Ghost Tours. Billed as “A Walk into the Night,” the ghost tours will be held Fridays beginning at 7 p.m. from Sept. 19 through Oct. 31. Admission is $15. The tours will begin on the Slater Mill site at 67 Roosevelt Ave. Carl and Keith Johnson, twin brothers and history buffs who work as interpreters at the Slater Mill site, will be leading the ghost tours as well. In addition to being experts on Slater Mill and the Blackstone Valley area, both are also serious students of the paranormal. Carl and Keith were both featured on the Sci-Fi channel’s popular “Ghost Hunters” TV show during its first two seasons. [ Visit Website ]