“I’ll help you cross, if you wish to go.”
Line 21: "He paused beside her and whispered low,"
Line 22: "“I’ll help you cross, if you wish to go.”"
" He paused beside her and whispered low, "
(He stops beside the woman and speaks softly.)
" I’ll help you cross, if you wish to go. "
(He politely offers to help the woman cross.)
Overall meaning: The boy stops beside the woman and politely offers to help her cross.