Monster High: Haunted ( 2015 )
When Spectra Vondergeist goes back to her old ghost school to find out why Monster High is being haunted, the other ghouls use Boogey Sand to transform into ghosts so they can follow her
Monster High: Freaky Fusion 2014
At Monster High, ten cute ghoul girls are sent 200 years back in time to when the school started Returning to 2014, the time machine has fused 8 of them into 4 bodies Solutions