The PJ Masks are traveling to mystery mountain and you can get one on Amazon right now for just $17.99! (Reg $29.99) The new PJ Masks mystery mountain playset is full of kid-powered play! Climb up the mountain on the lava elevator to launch the lava ball to keep night Ninja away. At the top of the mountain, the Pagoda gate rises to reveal the Dragon. Cat boy can send night Ninja down the trap door with a press of the button!