The tidings of Khosráu's accession to the throne were received at Sístán by Zál and Rustem with heartfelt pleasure, and they forthwith hastened to court with rich presents, to pay him their homage, and congratulate him on the occasion of his elevation. The heroes were met on the road with suitable honors, and Khosráu embracing Rustem affectionately, lost no time in asking for his assistance in taking vengeance for the death of Saiáwush. The request was no sooner made than granted, and the champion having delivered his presents, then proceeded with his father Zál to wait upon Káús, who prepared a royal banquet, and entertained Khosráu and them in the most sumptuous manner. It was there agreed to march a large army against Afrásiyáb; and all the warriors zealously came forward with their best services, except Zál, who on account of his age requested to remain tranquilly in his own province. Khosráu said to Káús:

"The throne can yield no happiness for me,
Nor can I sleep the sleep of health and joy
Till I have been revenged on that destroyer.
The tyrant of Túrán; to please the spirit
Of my poor butchered father."

Káús, on delivering over to him the imperial army, made him acquainted with the character and merits of every individual of importance. He appointed Fríburz, and a hundred warriors, who were the prince's friends and relatives, to situations of trust and command, and Tús was among them. Gúdarz and his seventy-eight sons and grandsons were placed on the right, and Gustahem, the brother of Tús, with an immense levy on the left. There were also close to Khosráu's person, in the centre of the hosts, thirty-three warriors of the race of Poshang, and a separate guard under Byzun.

In their progress Khosráu said to Fríburz and Tús, "Ferúd, who is my brother, has built a strong fort in Bokhára, called Kulláb, which stands on the way to the enemy, and there he resides with his mother, Gúlshaher. Let him not be molested, for he is also the son of Saiáwush, but pass on one side of his possessions." Fríburz did pass on one side as requested; but Tús, not liking to proceed by the way of the desert, and preferring a cultivated and pleasant country, went directly on through the places which led to the very fort in question. When Ferúd was informed of the approach of Tús with an armed force, he naturally concluded that he was coming to fight him, and consequently determined to oppose his progress. Tús, however, sent Ríú, his son-in-law, to explain to Ferúd that he had no quarrel or business with him, and only wished to pass peaceably through his province; but Ferúd thought this was merely an idle pretext, and proceeding to hostilities, Ríú was killed by him in the conflict that ensued. Tús, upon being informed of this result, drew up his army, and besieged the fort into which Ferúd had precipitately retired. When Ferúd, however, found that Tús himself was in the field, he sallied forth from his fastness, and assailed him with his bow and arrows. One of the darts struck and killed the horse of Tús, and tumbled his rider to the ground. Upon this occurrence Gíw rushed forward in the hopes of capturing the prince; but it so happened that he was unhorsed in the same way. Byzun, the son of Gíw, seeing with great indignation this signal overthrow, wished to be revenged on the victor; and though his father endeavored to restrain him, nothing could control his wrath. He sprung speedily forward to fulfil his menace, but by the bravery and expertness of Ferúd, his horse was killed, and he too was thrown headlong from his saddle. Unsubdued, however, he rose upon his feet, and invited his antagonist to single combat. In consequence of this challenge, they fought a short time with spears till Ferúd deemed it advisable to retire into his fort, from the lofty walls of which he cast down so many stones, that Byzun was desperately wounded, and compelled to leave the place. When he informed Tús of the misfortune which had befallen him, that warrior vowed that on the following day not a man should remain alive in the fort. The mother of Ferúd, who was the daughter of Wísah, had at this period a dream which informed her that the fortress had taken fire, and that the whole of the inhabitants had been consumed to death. This dream she communicated to Ferúd, who said in reply:—

"Mother! I have no dread of death;
What is there in this vital breath?
My sire was wounded, and he died;
And fate may lay me by his side!
Was ever man immortal?—never!
We cannot, mother, live for ever.
Mine be the task in life to claim
In war a bright and spotless name.
What boots it to be pale with fear,
And dread each grief that waits us here?
Protected by the power divine,
Our lot is written—why repine?"

Tús, according to his threat, attacked the fort, and burst open the gates. Ferúd defended himself with great valor against Byzun; and whilst they were engaged in deadly battle, Báhrám, the hero, sprang up from his ambuscade, and striking furiously upon the head of Ferúd, killed that unfortunate youth on the spot. The mother, the beautiful Gúlshaher, seeing what had befallen her son, rushed out of the fort in a state of frenzy, and flying to him, clasped him in her arms in an agony of grief. Unable to survive his loss, she plunged a dagger in her own breast, and died at his feet. The Persians then burst open the gates, and plundered the city. Báhrám, when he saw what had been done, reproached Tús with being the cause of this melancholy tragedy, and asked him what account he would give of his conduct to Kai-khosráu. Tús was extremely concerned, and remaining three days at that place, erected a lofty monument to the memory of the unfortunate youth, and scented it with musk and camphor. He then pushed forward his army to attack another fort. That fort gave way, the commandant being killed in the attack; and he then hastened on toward Afrásiyáb, who had ordered Nizád with thirty thousand horsemen to meet him. Byzun distinguished himself in the contest which followed, but would have fallen into the hands of the enemy if he had not been rescued by his men, and conveyed from the field of battle. Afrásiyáb pushed forward another force of forty thousand horsemen under Pírán-wísah, who suffered considerable loss in an engagement with Gíw; and in consequence fell back for the purpose of retrieving himself by a shubkhún, or night attack. The resolution proved to be a good one; for when night came on, the Persians were found off their guard, many of them being intoxicated, and the havoc and destruction committed among them by the Tartars was dreadful. The survivors were in a miserable state of despondency, but it was not till morning dawned that Tús beheld the full extent of his defeat and the ruin that surrounded him. When Kai-khosráu heard of this heavy reverse, he wrote to Fríburz, saying, "I warned Tús not to proceed by the way of Kulláb, because my brother and his mother dwelt in that place, and their residence ought to have been kept sacred. He has not only despised my orders, but he has cruelly occasioned the untimely death of both. Let him be bound, and sent to me a prisoner, and do thou assume the command of the army." Fríburz accordingly placed Tús in confinement, and sent him to Khosráu, who received and treated him with reproaches and wrath, and consigned him to a dungeon. He then wrote to Pírán, reproaching him for resorting to a night attack so unworthy of a brave man, and challenging him to resume the battle with him. Pírán said that he would meet him after the lapse of a month, and at the expiration of that period both armies were opposed to each other. The contest commenced with arrows, then swords, and then with javelins; and Gíw and Byzun were the foremost in bearing down the warriors of the enemy, who suffered so severely that they turned aside to attack Fríburz, against whom they hoped to be more successful. The assault which they made was overwhelming, and vast numbers were slain, so that Fríburz, finding himself driven to extremity, was obliged to shelter himself and his remaining troops on the skirts of a mountain. In the meantime Gúdarz and Gíw determined to keep their ground or perish, and sent Byzun to Fríburz to desire him to join them, or if that was impracticable, to save the imperial banner by despatching it to their care. To this message, Fríburz replied: "The traitors are triumphant over me on every side, and I cannot go, nor will I give up the imperial banner, but tell Gúdarz to come to my aid." Upon receiving this answer, Byzun struck the standard-bearer dead, and snatching up the Derafsh Gávahní, conveyed it to Gúdarz, who, raising it on high, directed his troops against the enemy; and so impetuous was the charge, that the carnage on both sides was prodigious. Only eight of the sons of Gúdarz remained alive, seventy of his kindred having been slain on that day, and many of the family of Káús were also killed. Nor did the relations of Afrásiyáb and Pírán suffer in a less degree, nine hundred of them, warriors and cavaliers, were sent out of the world; yet victory remained with the Túránians.

When Afrásiyáb was informed of the result of this battle, he sent presents and honorary dresses to his officers, saying, "We must not be contented with this triumph; you have yet to obscure the martial glory of Rustem and Khosráu." Pírán replied, "No doubt that object will be accomplished with equal facility."

After the defeat of the Persian army, Fríburz retired under the cover of night, and at length arrived at the court of Khosráu, who was afflicted with the deepest sorrow, both on account of his loss in battle and the death of his brother Ferúd. Rustem was now as usual applied to for the purpose of consoling the king, and extricating the empire from its present misfortunes. Khosráu was induced to liberate Tús from his confinement, and requested Rustem to head the army against Pírán, but Tús offered his services, and the champion observed, "He is fully competent to oppose the arms of Pírán; but if Afrásiyáb takes the field, I will myself instantly follow to the war." Khosráu accordingly deputed Tús and Gúdarz with a large army, and the two hostile powers were soon placed in opposition to each other. It is said that they were engaged seven days and nights, and that on the eighth Húmán came forward, and challenged several warriors to fight singly, all of whom he successively slew. He then called upon Tús, but Gúdarz not permitting him to accept the challenge, sent Gíw in his stead. The combatants met; and after being wounded and exhausted by their struggles for mastery, each returned to his own post. The armies again engaged with arrows, and again the carnage was great, but the battle remained undecided.

Pírán had now recourse to supernatural agency, and sent Barú, a renowned magician, perfect in his art, upon the neighboring mountains, to involve them in darkness, and produce by his conjuration tempestuous showers of snow and hail. He ordered him to direct all their intense severity against the enemy, and to avoid giving any annoyance to the Túránian army. Accordingly when Húmán and Pírán-wísah made their attack, they had the co-operation of the elements, and the consequence was a desperate overthrow of the Persian army.

So dreadful was the carnage, that the plain
Was crimsoned with the blood of warriors slain.