Kavus Darkens at Siavash's Letter

From B9.25, Kavus Receives the Message. It illustrates B9.25.5–16 (to B9.25.27):

B9.25.5
Then Rostam praised the prince before the band,And placed the letter in the monarch’s hand.
B9.25.6
A scribe then read the message clear and loud;The Shah’s face blackened like a pitch-dark cloud.
B9.25.7
He cried: “The boy is young and guileless yet,And has not learned the snares the wicked set.
B9.25.8
But you are seasoned, knowing good and ill,Well versed in every turn of fortune’s will.
B9.25.9
No man in all the world can match your might;The lions learn from you the art of fight.
B9.25.10
Have you not marked the havoc he has spread,How food and sleep and rest from us have fled?
B9.25.11
I wished myself to march against the foe;My head was filled with war and wished the blow.
B9.25.12
But men advised: ‘Let Siavash command’;And so I yielded and withheld my hand.
B9.25.13
When Yazdan’s judgment called for wrongs to pay,And evil deeds had earned their evil day,
B9.25.14
You chose instead the road of private gain,And left the path of justice clear and plain.
B9.25.15
Afrasiab has dazzled you with gold,With wealth torn from the innocent of old.
B9.25.16
A hundred Turks, base-born and without fame,You do not know their fathers or their name.