Indeed, it was not a newborn baby. It was a twitching mass of humanity in a canvas bag. The head peeping out was very disfigured! There was a forest of red hair, one eye, a mouth, and a few teeth. The eye was weeping, the mouth was crying, and the teeth seemed to want only to bite. A young priest had been listening to the women talking. He pushed by the women, looked at the child, and stretched out his hand. “I’ll adopt this child,” he said. He picked up the screaming bundle and carried it away. The young priest was none other than Claude Frollo. He named the child after the day—Quasimodo
I don't know it means: the child in a bundle who is screaming or the strange child in the bundle.