Super Frenemies! (Simon and Chester Book #5)

"The worst has happened: Chester has been sucked up by a ghost trap in an attempt to save his best friend Simon, who is a ghost. Chester's school friend Amie blames Simon--after all, if Chester wasn't trying to save him, he wouldn't have been sucked up. And Simon blames Amie--after all, if Amie's dad wasn't a ghost hunter, there wouldn't be a trap there in the first place. But these two sworn enemies are going to have to work together to save Chester before the containment unit is emptied into the void"--