The Walls of Tur's Fortress Fall in Fire

From B14.20, Rostam Fights Kafur the Maneater. It illustrates B14.20.58–67:

B14.20.58
A siege did not accord with Rostam’s will;On four sides troops approached the fortress hill.
B14.20.59
First Zabul’s army came in armor bright,With Kabul blades made ready for the fight.
B14.20.60
Gudarz and Tus each held a side; the rearHeld Giv with elephants; the koust rang clear.
B14.20.61
The veteran Rostam bent his bow with might;The fortress stared in awe at such a sight.
B14.20.62
He picked off every head that dared ariseAbove the wall before his watchful eyes.
B14.20.63
His pikan spoke in whispers to the brain;An ill-matched pair were joined in mortal pain.
B14.20.64
To drive the garrison from tower and stone,He mined beneath the walls they called their own.
B14.20.65
The posts that held the ramparts overheadWith black naphtha were coated as they spread.
B14.20.66
When half the fortress wall was undermined,He fired the wood beneath the stone confined.
B14.20.67
Tur’s ramparts fell amid the fiery glow;From every side the troops rushed at the foe.