I walked around the marshy areas of Route 14/Laverre Nature Trail after collecting some items and I headed over to the tall grass sections after beating the trainers around Route 14 and I caught a wild Goomy, Shelmet and Karrablast there. I waded deeper into the swampy water and encountered and caught a wild Stunfisk and a wild Quagsire as well. I then met Shauna, Trevor and Tierno again and we went into a spooky building together. After speaking with the man inside, we headed back outside and Tierno and Trevor left to Laverre City. I moved towards Laverre City too after that and got the Toxic TM from a Hex Maniac in the marshland. I also caught a wild Bellsprout in a horde, then I finally arrived in Laverre City.