Which issue is Zhang Linghe in Bailuyuan?

The tenth and eleventh issues of the fourth season.

According to the query of Escape from the Chamber of Secrets, Bailu and Zhang Linghe participated in the tenth and eleventh issues of the fourth season of Escape from the Chamber of Secrets. Escape from the Chamber of Secrets is an educational reality show, inviting guests to enter an unknown world full of different roles and identities and experience the ultimate excitement.