Naminé's Sketches

Naminé's Sketches is a key item that appears in Kingdom Hearts II. After Roxas finds it in The White Room, a secret stairway opens up from the to the Computer Room.

Kingdom Hearts II
After meeting with Naminé in the Old Mansion, Roxas acquires her sketchbook which contains many of her drawings. Further in the mansion, he uses a design from the sketchbook to complete a drawing left on a table, activating a secret staircase that leads into DiZ's laboratory.