Mardas Falls into the Pit

From A4.2, Zahhak and His Father. It illustrates A4.2.39–45:

A4.2.39
Before the dawn, Mardas would rise each day,And make himself prepared to kneel and pray.
A4.2.40
He washed his head and body out of sight;No servant bore a lamp before the light.
A4.2.41
The evil one dug deep into the ground,Along the path where Mardas made his round.
A4.2.42
He covered it with brush and leafy screen,Then smoothed the road till no dark trap was seen.
A4.2.43
While night still held the garden in its gloom,The Arab lord walked unaware of doom.
A4.2.44
As Mardas neared the hidden pit that day,His royal fortune turned and fell away.
A4.2.45
His back was broken when he struck below,And death closed over Mardas, laid him low.