When Gravity Falls, Call a Phantom

Gravity Falls x Danny Phantom (side series to my 'Mutants' series) Happens after book three and before book four.

Danny and his family go on a vacation, along with Samantha Manson and Tucker Foley. What they didn't plan was to get sucked into a portal to another dimension! Dipper and Mabel are still in Gravity Falls, ready for more mystery searching! Their plans are cut short due to the fact that Grunkle Stan hired a babysitter. Danny Fenton tries to hide that he's part ghost from the Pines family, Wendy, and Soos. Will his secret remain? Only I know! :) Read to find out!