After clearing Rivas, we clattered over the road at a fast pace, rousing
all the dogs at the _haciendas_ as we passed, and leaving them baying
behind us, until we came to where the Potosí road forked off to the
right; thenceforward, fearing an ambush, we rode slowly and with great
caution, stopping often to dismount and reconnoitre moon-lit fields
beyond the roadside hedges. At length, after passing a picket of our
riflemen, we came to a large _adobe_ house directly on the roadside,
where we found the main body of the detachment encamped and sleeping.
The house stood something under half a mile from Obraja, and was the
residence of that friendly alcalde who on the approach of the enemy
had removed with his family to Rivas, and placed General Walker on his
guard. As we rode into the yard, we had some ado to keep our horses
from treading on the sleeping soldiers, who lay scattered all round
the building, and also in its open corridor fronting toward Obraja.
Dismounting here, our courier went into the house to communicate with
Colonel O'Neal, the commander of the detachment,--leaving it to us
either to tie up, and lie where we were until morning, or pass farther
up the road, where Captain Finney's rangers were stationed. I chose to
go forward and hear the rangers' story, who, we were told, had had a
slight brush with the enemy in the beginning of the night.

After riding near quarter of a mile, I came to another _adobe_ building
on the roadside, occupied by a small party, and forming Colonel O'Neal's
advanced post, at the distance of four hundred yards or more from
Obraja. Here they told me that Captain Finney's company, whilst riding
into Obraja early in the night, had been hotly fired upon, and Captain
Finney himself was brought off struck in the breast, wounded mortally.
The riflemen had as yet made no attack, but awaited daylight. The number
of the enemy was not known; though rumor placed it between one thousand