(Songbird refers to Booker DeWitt as Thief, for obvious reasons.)
"YOU TOOK MY ELIZABETH FROM ME! I HATE YOU,THIEF!" I shrieked as I slammed the glass hull of the underwater city. My vision went blurry, and then I went blind in my right eye, the ocean's pressure proved too much for it. I looked at the hull, begging for my Elizabeth to take me back up to the surface; her look of sadness told me that I couldn't be saved…
I remember the first day I was brought to her. "Elizabeth, this is Songbird, he'll bring you whatever you want, dear!" Mr. Comstock said in the speakers. "I don't want him! I just want to leave!" She said. But something inside of me just wanted to please her, to make her love me and want me. So I brought the little girl some toys and some food. She grew to like me, as did I. I vowed to always protect that girl: no matter what. But ever since that… That man came and took my dear Elizabeth from me, I just couldn't handle it! I had to try and kill that thief… But she stopped me. She's like Venus, while I am Mars. She's is the person who calms me down when I'm upset… I was always her protector… I love Elizabeth… She's my reason for living.
He didn't have to do that, he didn't have to put my dearly beloved Elizabeth in such danger! She was safe in the tower; she was safe… with me. It was my fault that I let that man take her away…
Elizabeth put her hand up on the glass. "It's okay..." She said.
I've loved her with all of my heart and all of my soul… But alas, this love was one-sided. I put my hand on the glass, as all of my vision went black, the ocean, crushing me within the pressure… "Good bye, Elizabeth… Good bye, Thief… Take care of the girl… please…