Young Lucy has moved to a new apartment. Signed by Zelda is about how Lucy's life becomes intertwined with her upstairs neighbor's as they try to find Nicky's missing grandmother, Zelda. The only thing they have in common is their bird friend, Pigeon. Lucy is struggling to be accepted and taken seriously as a handwriting analyst. Nicky is trying to be accepted at home. He wants to have a good relationship with his insensitive father. When Nicky goes on a routine visit to Zelda's, she is not there! The only clue is a handwritten note. Nicky, Lucy, and Pigeon must join forces to find Zelda. As they search and spy, Lucy and Nicky learn to understand each other as they each learn to deal with their lives and make difficult decisions.
This is a quirky book that is anything but predictable. I love the character of Pigeon. She is not treated as magical and amazing; she is just a normal character, and very believable. Pigeon is the only thing Lucy and Nicky have in common. She gives them an outlet for their problems, though she has problems of her own. All the characters have distinct personalities and are far from perfect. Nicky's father is also interesting. He is so caught up in himself that he forgets about everyone else. The book has many side plots, but it is fairly easy to read and flows well. The author writes about some serious things, but the story has many fun and funny parts. Signed by Zelda is moving, interesting, and unique. I highly recommend it.