The man is named lucas who found bella in a cat den. He lives in a condo but he's not allowed to have dogs so he hid bella.
In this part of the book he brings bella to his work where she helps the homeless people that live there feal better by making them feel good. They also have to hide bella because the manger comes and their not allowed to have dogs.
In this part of the book, he is teaching bella to do "go home" witch is were bella has to run home in a hiding spot if they get caught. Bella runs away so now Lucas is searching the area for bella.