I'm stuck in Madeleine's castle. When I insert the 3 keys, it doesn't remove the forcefield.
https://mega.nz/#!P5dVzaAY!iP_Q8KSs6-Mqw5Fe_00yHg_gGL2xKLAuXQuIBqPsGZg
Using mega link since file upload isn't working for some reason.
EDIT: nvm, there's a hidden keyhole beside the robot...