 It was only on the arrival of a Portuguese spy fleet at Seville that Orellana's creditors relented and allowed him to sail.On reaching Sanlucar he was detained again, the authorities having discovered a shortfall in his complement of men and horses, and the fact that large numbers of his crew were not Spanish.On 11 May 1545 Orellana (in hiding on one of his own vessels) surreptitiously sailed out of Sanlucar with four ships and disappeared from view.