The Paranormalists Series by Megan Atwood

Jinx felt something rumble through the room. She began to shake and moved closer to Jackson. "Do you feel that?" she whispered. Jackson nodded. When Jinx glanced at him, his face had turned bright white. As if he'd seen a ghost.

Jinx looked at the bar, then back at Devon and Todd. "You may want to duck, is all I'm saying." As the words left her mouth, three glasses came shooting from the bar, straight toward the brothers. Devon and Todd ducked and the glasses shattered against a door behind them.

A dark, shiny poster was spread across the board, crowding out school lunch menus and events calendars: NEED TO BANISH A GHOST? CALL THE PARANORMALATOR. I SEEK KNOWLEDGE AND FIND THE SOURCE. Jackson and Jinx looked at each other. Jinx's mouth hung wide open. Everything about the poster ripped off the Paranormalists.

"Believe me, I don't like this any more than you do, but you're the only one who has the expertise and equipment. There's something going on at St. John's Bridge, and I want to hire you to find out what it is."