What is the summary for Part 3, Chapter 3 of The Underdogs?
Demetrio and his troops spend time in Zacatecas and Aguascalientes, and find both country towns deserted. The men are bored, and amuse themselves by drinking and conducting cockfights. Demetrio's staff is now "composed chiefly of young ex-government officers". Demetrio himself is depressed.
One afternoon, Demetrio sits down with his officers in front of a city square, abandoned and overgrown with weeds. He calls the mad poet Valderrama to him and asks him to sing a song. As Valderrama tunes his guitar, a cockfight begins, and Valderrama is distracted. The fight is swift and fierce, with the two roosters, one a light red with obsidian-tipped feathers, and the other sand-colored with feathers of a fiery copper color, tangled "in a dizzy whirlwind" momentarily suspended in the air. The battle ends when the red rooster breaks loose and lands outside the chalk lines "with his legs to heaven", dying "convulsively in a pool of blood".
Valderrama then begins his song, and he sings with such feeling and expression that Demetrio is brought to tears. Demetrio tries to hide his eyes, but Valderrame embraces him, whispering, "Drink them...those are beautiful tears". A drink is passed, and in a reference to the General's weeping, the mad poet dramatically announces, "here you may witness the pleasures of the Revolution caught in a single tear" (Part 3, Chapter 3).