Yaevinn's letter

This is a quest item. The letter is given to Geralt by Yeavinn when they first meet in the Swamp.

The letter says:
 * Dear Vivaldi! I write to remind you that we once spoke of financial support for our cause. You claimed you would consider the matter, one that can wait no longer. I repeat for the final time - either you are with us or with the humans. There is no alternative. This is your last chance, for the time approaches and nothing will stop us, not even your refusal.

The letter is signed "Y."