Kassim intended to come back to the cavern with a convoy of camels. But in all of his happiness, he forgot the magic formula, and the rock wouldn't open. - Open, barley? ... ? Open, hay? … ? The forty thieves came back at noon. Kassim no longer doubted his loss. The bandits seized the invader of their cavern and tortured him. Then, for a long time they deliberated about the event. They swore to punish Kassim's brother. See more on Number 6.