This was followed by a joint embassy from Bukka of Vijayanagar and the prince of Warangal to the Sultan of Delhi, in which they offered to act in conjunction with him should an army be sent southwards by that monarch in order to regain his lost power in the Dakhan; "but Feroze Shah, being too much employed with domestic commotions to assist them, did not attend to their representations." Thus encouraged, Muhammad assembled fresh forces and despatched them in two divisions against Warangal and Golkonda. The expedition was successful and the Rajah submitted, the Sultan receiving Golkonda, an immense treasure, and a magnificent throne as the price of peace. The throne was set with precious stones of great value, and being still further enriched by subsequent sovereigns was at one time valued at four millions sterling.[42] Warangal finally fell in A.D. 1424, and was annexed to the Bahmani kingdom, thus bringing the Muhammadans down to the River Krishna all along its length except in the neighbourhood of the east coast. Now for the principal events of Bukka's reign and the affairs of Vijayanagar. The story deepens in interest from about the year 1365, and for two centuries we can follow the fortunes of the Hindu kingdom without much difficulty. Early in A.D. 1366[43] the Sultan opened his first regular campaign against Vijayanagar. Originating in an after-dinner jest, it ended only after such slaughter that Firishtah computes the victims on the Hindu side alone as numbering no less than half a million. The story is told us by an eye-witness, one Mullah Daud of Bidar, who was seal-bearer to Sultan Muhammad.[44]