Valmiki Ramayana Aranya Kanda Sarga 44 Shloka 10
Original Shlokaस तमुन्मादयामास मृगरूपो निशाचरः। मृगैः परिवृतो वन्यैरदूरात्प्रत्यदृश्यत।।3.44.10।।
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मृगरूपः assuming the form of a deer, सः निशाचरः that demon, तम् him, उन्मादयामास excited, वन्यैः with forest, मृगैः animals, परिवृतः surrounded by, अदूरात् not very far from him, अदृश्यत was seen.
That demon transformed himself into a deer and, surrounded by the animals of the forest at close range, attracted his attention.