Warriors Hidden in the Merchant's Chests

From C7.9, Esfandiyar’s Guile at the Ruyin Dezh. It illustrates C7.9.17–26:

C7.9.17
He called the cameleer and bade him stayBefore Bishutan, kneeling, to obey:
C7.9.18
“Bring me a hundred camels, strong to bear,All red of coat, with proud and handsome air.”
C7.9.19
Ten camels bore gold dinars in the train;Five, Chin brocade; five, gems of every vein.
C7.9.20
A golden throne and crown were loaded too,Among the precious stones of every hue.
C7.9.21
He brought forth eighty pairs of covered chests,With hidden fastenings, for their hidden guests.
C7.9.22
He chose eight score of mighty men, well tried,Who would not let his secret plans spread wide.
C7.9.23
He hid them in the chests with careful art,Then bound the baggage fast for them to start.
C7.9.24
He chose some twenty chiefs, discreet and strong,His proud swordsmen, to bring the train along.
C7.9.25
He set those chiefs to guide the laden train,As cameleers, each with a camel’s rein.
C7.9.26
With shoes upon his feet, a coarse wool gown,He went as one who sought no warrior’s crown.