Valmiki Ramayana 6.41.97
कृत्स्नं हि कपिभिर्व्याप्तं प्राकारपरिखान्तरम् ।ददृशू राक्षसा दीनाः प्राकारं वानरीकृतम्॥
kṛtsnaṃ hi kapibhirvyāptaṃ prākāraparikhāntaram |dadṛśū rākṣasā dīnāḥ prākāraṃ vānarīkṛtam ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book