Sentence 1: Lily was walking to school. 
 Sentence 3: One of the gusts swept away her scarf 
 Sentence 4:  She chased after it but to no avail 
 Sentence 5:  Luckily, someone caught the scarf and returned it to her later 
 Option 1: Huge gusts of wind were crashing into her. 
 Option 2: Huge gusts of wind were crashing into her and lost her scarf forever.