The Ramayan by Valmiki

When Rama and the host he led Across the sea had safely sped, Thus Ravan, moved by wrath and pride, To Suka and to Saran cried: "O counsellors, the Vanar host Has passed the sea from coast to coast, And Dasaratha's son has wrought A wondrous deed surpassing thought. And now in truth I needs must know The strength and number of the foe. Go ye, to Rama's host repair And count me all the legions there. Learn well what power each captain leads His name and fame for warlike deeds. Learn by what artist's wondrous aid That bridge athwart the sea was made; Learn how the Vanar host came o'er And halted on the island shore. Mark Rama son of Raghu well; His valour, strength, and weapons tell. Watch his advisers one by one, And Lakshman, Raghu's younger son. Learn with observant eyes, and bring "Unerring tidings to your king.

He ceased: then swift in Vanar guise Forth on their errand sped the spies. They reached the Vanars, and, dismayed, Their never-ending lines surveyd: Nor would they try, in mere despair, To count the countless legions there, That crowded valley, plain and hill, That pressed about each cave and rill. Though sea-like o'er the land were spread The endless hosts which Rama led, The bridge by thousands yet was lined, And eager myriads pressed behind. But sage Vibhishan's watchful eyes Had marked the giants in disguise. He gave command the pair to seize, And told the tale in words like these: "O Rama these, well known erewhile, Are giant sons of Lanka's isle, Two counsellors of Ravan sent To watch the invading armament."