The disastrous expedition commenced under the command of Gen. Somerville, and terminated at Mier by the surrender of the whole party to Don Pedro de Ampudia, since become a person of most unenviable notoriety, is well known. One of the most conspicuous members of this foray, for it scarcely deserves another name, was Walker. He distinguished himself during the long siege the Texans maintained in the house they had seized, until forced for want of provisions and ammunition to surrender. With the rest he was marched to the castle of Perote, suffering every indignity which Mexican cruelty and ingenuity could invent. On this sad march, at Salado, Walker performed perhaps the most brilliant exploit of his life. Wearied out by cruelty, the Texans resolved to escape, and on this occasion Walker was the leader. The prisoners were placed in a strong stone building, at the door of which two sentinels were placed, while their escort bivoucked in front of the building. Walker, at a concerted signal, threw open the door, seized and disarmed one of the sentinels, while a gallant fellow named Cameron, a Highlander, was equally successful with the other. The unarmed prisoners immediately rushed through the gateway and seized the arms of the Mexican guard. No scheme was ever more daringly planned or more boldly executed. Within the course of a moment the two hundred and fourteen Texans had changed places with the numerous Mexican guard. Outside of a court-yard, in which the guard had bivoucked, was a strong cavalry force, which the Texans charged with the bayonet and routed, and immediately resumed their march back to the Rio Grande. They deserved success and liberty, but ignorant of the country, soon became lost in the mountains, were overpowered and taken back to Salado. They found Santa Anna there, and the Mexican President decimated the party. The Texans in their escape and conflicts had lost five men, and Santa Anna demanded the decimation of the rest. A bowl was brought, and a bean for every man was placed in it, every tenth bean being black. The bowl was covered, and the whole party were then ordered in succession to take out one bean. The twenty-one individuals who had chanced on the black beans were immediately shot. This was the famous _Caravanza_ lottery, the mere mention of which is sufficient to make the bosom of every Texan boil with indignation, and which is the origin of the intense hatred borne by all the people of that state to Santa Anna. This worthy has during the whole war carefully avoided the Texan Rangers, and had he come in contact with them, they would doubtless have exacted a fearful retribution. Walker with the survivors of the party were taken to Perote, whence he was lucky enough to escape, and returned to Texas, into the service of which he was at once received.