Treasure Room

The Treasure Room is in the castle of Cair Paravel. It held treasures, weapons, mail and armor including Peter's sword and shield, Susan's bow and quiver, and Lucy's Cordial along with Lucy's Dagger. It was at the end of a dais in the courtyard of the castle and there were sixteen steps leading down into it from the door that at one point was covered in ivy.

In Film
In the Disney and Walden Media's 2008 film Prince Caspian, soon after the Pevensies return to Narnia. Edmund spies ruins on the hilltop above the beach on which they're playing. As they go on to investigate they discover that the ruins are of their former home, Cair Paravel. They eventually discover the treasure room in which they recover all the gifts they had received 1,300 years previously from Father Christmas and their Narnian clothes.