Instructions
Take the left scale up to the golden gate upon arriving in the Scales room in the Red Queen's castle.
Open the gate using the March Hare's Telekinesis ability and fight the Red Fortress Knight on the other side of the gate.
Use the Telekinesis ability on the next gate to open it as well, then enter the chamber with multiple doors. Go through the door with the "Club" symbol over it and exit via the door with the "Heart" symbol over it.
Enter the door with the "Diamond" over it, exit via the door with the "Spade" symbol above it and re-enter through the door with the "Spade" symbol over it. Finally, exit via the door with the "Diamond" symbol above it and enter the door with the "Heart" symbol above it to illuminate all the doors.
Exit via the door that displays all the suits at the top of the chamber and save your game at the glowing yellow pillar.