In the fantasy fiction by Daniel Jose Older, Bennie cries when Sierra returns from her crashed summer party because he fears the dangers posed by the recent unfolding events in the Brooklyn community.
The mysterious events are linked to the gradual elimination of the community's shadowshapers by an unknown spirit. Bennie needs to tell Sierra the truth about her family background by introducing her to Robbie. It is only an empowered Sierra that can save the Brooklyn community as she pursues her life's purpose.
Shadowshaping, as depicted in this book, is a thrilling magical art through which ancestral spirits are infused in paintings, music, and stories. Bennie understands that Sierra needs to be directed well to fulfill her mission but fears the dangers inherent in shadowshaping.
Thus, he sheds tears because connecting Sierra to shadowshaping and her friend, Robbie, a mysterious shadowshaping expert, exposes Sierra to imminent spiritual dangers and attacks.
Learn more about Daniel Jose Older's Shadowshaping at https://brainly.com/question/19506156