Whilst being struck in that battle with those shafts sped from the bow of Bhima, the Rakshasa recollected the slaughter of his brother (Vaka) by the illustrious Pandava.  Assuming then an awful form, he addressed Bhima, saying, ’Wait a little in this battle, O Partha!  Behold today my prowess.  O thou of wicked understanding, that foremost of Rakshasas, viz., the mighty Vaka, was my brother.  It is true he was slain by thee.  But that took place out of my sight.’  Having said these words unto Bhima, Alamvusha made himself invisible, and began to cover Bhimasena with a dense shower of arrows.  Upon the disappearance of the Rakshasa, Bhima, O monarch, covered the welkin with straight shafts.  Thus afflicted by Bhima, Alamvusha soon returned to his car.  And soon again, he entered into the bowels of the earth and once more becoming little he suddenly soared into the sky.  Alamvusha, assumed countless forms.  Now becoming subtle and now huge and gross, he began to roar like the clouds.  And he uttered diverse kinds of words and speeches all around.  And from the welkin there fell thousands of arrowy torrents, as also darts, and Kunapas, and lances, and spiked maces, and short arrows, and scimitars, and swords, and thunders also.  That awful downpour of arrows caused by the Rakshasa, slew the troops of Pandu’s son on the field of battle.  And in consequence of that arrowy downpour, many elephants also of the Pandava army were slain, and many steeds also, O king, and many foot-soldiers.  And a river was caused there, whose waters were blood and whose eddies were constituted by cars.  And it abounded with elephants that constituted its alligators.  And the umbrellas of car-warriors constituted its swans, and the flesh and marrow of animals, its mire.  And it teemed with the (cut off) arms of human beings that constituted its snakes.  And it was haunted by many Rakshasas and other cannibals.  And it wafted away, O king, countless Chedis and Panchalas and Srinjayas.  Beholding him, O monarch, careering so fearlessly in that battle and seeing his prowess, the Pandavas became filled with anxiety; and joy filled the hearts of thy troops then.  And amongst the latter, loud and terrible sounds of musical instruments, making the hair stand on end, arose.  Hearing that loud uproar made by thy troops, the son of Pandu could not bear it, as a snake cannot bear the clap of human palms.  With eyes red as copper in rage, with glances that like fire consumed every thing, the son of the Wind-god, like Tvashtri himself, aimed the weapon known by the name of Tvashtri.  From that weapon were produced thousands of arrows on all sides.  And in consequence of those arrows, a universal rout was seen among thy troops.’  That weapon, shot in battle by Bhimasena, destroying the effective illusion produced by the Rakshasa, greatly afflicted the Rakshasa himself.  Struck in every part of his body by Bhimasena, the Rakshasa, then abandoning Bhimasena, fled towards the division of Drona.  Upon the defeat of that prince of Rakshasa by the high-souled Bhima, the Pandavas caused every point of the compass to resound with their leonine roars.  And filled with joy, they worshipped the mighty son of Marut, like the Maruts worshipping Sakra after the defeat in battle of Prahlada.’”