Boy enters bus barefoot, driver immediately calls the police

The boy 

She stopped at the bus stop. Once the doors were open, she saw a little boy standing on the doorstep. The boy was shaking on his legs and it was obvious that he had been crying. The boy looked anxiously at Margaret, who motioned for him to get in. Once the boy was inside the warm bus, Margaret asked him a question.

 “Where are you going?” she asked the little boy.