THE SHELTERS OF STONE

Jondalar led the way, first upstream a short distance to a shallow crossing of the tributary, then continuing upstream along the opposite bank of the small river a little farther until they saw a gorgelike narrow valley on their right. They rode north away from the stream and up the length of the confined vale along a rocky dry streambed that became a runoff creek in wet weather. At the end of the gorge was a steep but climbable trail that eventually opened out onto a high windy plateau that overlooked the waterways and countryside below. They stopped to take in the commanding view.

At an elevation of some six hundred fifty feet, the plateau was one of the highest in the immediate area and afforded a breathtaking panorama, not only of the rivers and valley floodplains, but across to the landscape of rolling hills of the highlands on the other side. The limestone Gausses above the river valleys were not level plateaus.

Limestone is soluble in water, given enough time and the right acidic content. Over the long ages rivers and accumulated groundwater had cut down through the limestone base of the region, carving the once flat floor of the ancient sea into hills and valleys. The existing rivers created the deepest valleys and the steepest cliffs, but though the stone walls that reared up and constrained the valleys often had a uniformity of height in any one section, they varied in elevation from place to place, following the pattern of hills above.

At a cursory glance, the vegetation of the dry, windy, high Gausses on both sides of the primary river all seemed the same, similar to the open plains of the continental steppes to the east. Grass was most prevalent, with stunted junipers, pines, and spruces clinging to exposed areas near streams and ponds, and brush and small trees growing in the dips and dells.

But depending on where it grew, the plant life could be surprisingly different. The sparse tops and north-facing sides of the hills favored a more arctic herbage that flourished where it was cold and dry, while the south-facing slopes were greener and richer in lower-latitude boreal and temperate-climate plants.

The broad valley of the main river below was more lush, with deciduous trees and evergreens lining the banks. Showing a paler shade of green than they would later in the season, the freshly leafed-out trees were mostly the small-leaved varieties like silver birches and willows, but even conifers such as spruces and pines showed light-colored needles of new growth at the tips. The junipers, and occasional evergreen oaks, were more mottled with their spring color appearing at the ends of branches and twigs.

At times along its course, the waterway meandered through the middle of verdant meadows in the level floodplains, with the tall grass of early summer turning to gold. In other places the curves and loops of The River's course narrowed the stream and forced it to flow against the stone walls, closer to the cliffs on first one side and then the other.

In places where the conditions were just right, the floodplains of some rivers, especially tributaries, supported small mixed forests. In protected areas, especially on south-facing slopes away from the wind, chestnut, walnut, hazelnut, and apple trees grew, many stunted, and nonbearing in some years, but providing a welcome bounty in others. Along with the trees were a variety of fruit-bearing vines, bushes, and plants, including strawberries, raspberries, and currants, with some grapes, gooseberries, and blackberries, a few raspberry-like yellow cloudberries, and several varieties of round blueberries.

At even higher elevations, fragile tundra vegetation prevailed, especially the high massif to the north, which was cloaked with glacial ice, though it brandished several active volcanoes-Ayla and Jondalar had found hot springs in the region when they traveled through it several days before they arrived. Lichens clung to rocks, herbs hovered only inches above the ground, and dwarfed shrubs lay prostrate across the frigid land over a base of permanently frozen subsoil. Mosses in variegated colors of green and gray softened the landscape in wetter regions, along with reeds, rushes, and certain grasses. The diversity of vegetation throughout the region made for a richness of variety and choice, and encouraged a like richness of animal life.