Punishment followed hard upon the heels of the atrocity. Cyrus and Darius served as door-keepers of the royal palace on the evening of the banquet. They had received orders from Belshazzar to admit none, though he should say he was the king himself. Belshazzar was forced to leave his apartments for a short time, and he went out unnoticed by the two door-keepers. On his return, when he asked to be admitted, they felled him dead, even while he was asseverating that he was the king.
Daniel left Belshazzar and fled to Shushtar, where he was kindly received by Cyrus, who promised him to have the Temple vessels taken back to Jerusalem, provided Daniel would pray to God to grant him success in his war with the king of Mosul. God gave Daniel's prayer a favorable hearing, and Cyrus was true to his promise.