Shortly afterward, the Mother advises the Tramp to call a doctor after the Kid falls ill. The doctor discovers that the Tramp is not the Kid's father and notifies authorities. Two men come to take the boy to an orphanage, but after a fight and a chase, the Tramp and the boy remain side by side. When the Mother comes back to see how the boy is doing she encounters the doctor, who shows her the note (which he had taken from the Tramp); she recognizes it as the one she left with her baby years ago.