Final answer:
In Act V of 'Cyrano de Bergerac', Roxane keeps Christian's last letter draped around her neck as a symbol of her enduring love for him.
Step-by-step explanation:
In Act V of Cyrano de Bergerac, after Christian's death, Roxane keeps a precious item around her neck, which is Christian's last letter.
This letter is of profound sentimental value to her as it represents her love for Christian and the memory of his noble characteristics and affection for her.
The letter is kept close to her heart, symbolizing her enduring love and the deep impact Christian had on her life even after his demise.