Spring thaw loosened the grip of ice and set the wagons loose again, but the landscape that welcomed them was not merely thawed; it had its own set of rules. The expedition pushed out of the mesas onto a sea of grass, a near-endless prairie where the wind had room to gather. The smell of fresh-cut grass replaced the resin and sun-warmed adobe; the sound of lowing bison carried across miles. On this open plain the cavalry could move with different purpose, and the men felt, for a while, the ease of transit that such openness allowed.
Yet the plains tested them in other ways. Water became a shifting calculation: small pools that looked full could be brackish, wells were often shallow, and the heat of the day baked camel-thin horses. The men rationed water, dipping their hands and tasting the inexorable tang of mineral. In the midday glare, caravans slowed to a crawl; the thermometer of morale dropped. The risk here was not cliffs or sudden ambush but distance itself — the capacity of the land to disperse men and to separate supply from demand.
The party's movement across the grasses brought them into contact with peoples who lived differently than those clustered in adobe. New villages were found in river valleys dotted with reed houses and earth lodges, structures built to suit a world of seasonal movement and abundant game. One of the most consequential interactions occurred when the expedition met a Plains man — a guide who, whether from calculation or curiosity, offered to lead the Spaniards to lands further east where he said great settlements lay. He was known among his own people by a name that the Spaniards translated variously or rendered as 'the Turk' in their accounts. He became, for a time, a crucial intermediary, steering them toward the villages that would loom large in European reports.
At a place named later in European accounts as Quivira, the expedition finally encountered reed houses and cultivated fields — people who lived in long-tiered structures that were not built of stone but of earth and reed. There was no golden façade, no streets paved in metal. Instead the Spaniards saw a functioning agrarian society that stored maize in pits and fashioned pottery for daily use. The disappointment hung like dust: the hope for vast metallic wealth had been the lodestone that had drawn men across deserts and plains. The absence of such treasure produced despair and anger among those whose expectations had been formed by rumor rather than reconnaissance.
Commitments frayed. The psychology of defeat took hold in different ways. Some officers pressed for immediate retribution against those they deemed responsible for the lack of treasure; others argued for restraint and for more careful mapping. Food shortages and the decline in animals produced further strain: horses starved and were eaten; men who had been proud and combative grew gaunt and resigned. Desertion increased as men slipped away to find ranchos or to join other expeditions. The expedition's manpower, once a source of confidence, attenuated into a precarious thread.
Yet the expedition's scientific and geographic gains were real. Reports and sketches made it back through the chain of command describing a massive inland gulf in the western reaches — the canyon whose scale confounded those who tried to measure it with rope and lead. Surveys of the plains and notes about the river systems produced new cartographic data that would enter European atlases. The men recorded the appearance of unfamiliar flora, the behavior of bison herds, and the seasonal patterns of the region. In the absence of treasure, knowledge itself became a form of return on investment.
Not all struggles were external. Within the leadership, disputes hardened into accusations. The commander faced criticism for decisions made under duress: where to divide detachments, which villages to attack, how to allocate scarce provisions. Some subordinates privately recorded discontent; a handful plotted to abandon the march and return to areas where their survival odds were higher. The psychological toll on the commander was severe: he had to balance pride, obligation, and the eventual reckoning with the viceroy and court. This internal strain showed in his fatigue, and later would be used by his critics as evidence of mismanagement.
Then came the turning point. With horses weakened and food stores low, with no gold on hand and with a growing number of men ill or missing, orders were given to consolidate and begin the move back toward the routes that led to the colony's administrative heart. It was a retrenchment that felt like defeat. Men burned excess supplies, slaughtered what animals they could not feed, and took account of losses. The landscape, which had been a source of wonder and possibility, now read like a ledger of scarcity. For the indigenous peoples who had encountered the expedition, the aftermath was different but no less profound: agricultural fields trampled, lives lost in skirmishes, and a disease burden that would ripple outward.
The march back carried its own grief. There were more deaths, more graves in shallow soil, more mutterings and refusals. Yet the men carried reports: the canyon's edge waiting to be described; the plains to be cataloged; the reed villages to be detailed. They had failed to extract the riches that had been promised, but they had left behind a map of contact and a series of testimonies that would change how Spain thought about northward expansion. The victory they had not taken in treasure they had taken in knowledge — and in the unromantic consequences of expanded contact.
At the edge of the plains, moving slowly toward the river systems that had once fed their advance, the column tightened ranks for the long route home. Ahead lay the lowlands and the familiar geography of their starting point, but behind them was a changed world — a map replete with new paths and a ledger filled with human losses. The next chapter of the story would be the return and the judgment that followed: what would the authorities deem a success, and what would the survivors say when they faced the courts and the families of the dead?