Letters by Nabu, technically by Zatara, to Zatanna for the six years that he held Zatara prisoner and for the five birthday's of his daughter's that he missed. Also with responses from Zatanna, not that Zatara will ever see them.
Letter one:
Dear Zatanna,
Please, don't hate me. I love you and that is why I did what I did. Just remember that you are my lovely little girl and that I will always love you. I had convinced Fate to write this letter because I wanted to express how sorry I am for making you cry. I never meant to be over protective. You're my little girl, that is why I didn't want any harm to come to you. It wasn't your fault. I love you more than words and actions can express. I just hope that you can find it in you to forgive me.
Love, Zatara.
P.S I hope you still like my rainbow roses, my little girl.
Response one:
Dear Zatara,
I don't hate you, I love you more than you know. I understand now. I may be your whole world, but your mine too. I forgive you and I just want you to come home Zatara. You're my mentor and my best friend. It wasn't right for me to do that. I am so sorry Zatara. I never wanted you to get hurt either, that's why I was so rebellious. I'm sorry if I hurt you Zatara. I didn't mean it. I never did.
Love, Zatanna.
P.S How did you know? Thank you for everything. I wish I could give you something in return.