The Bright Defile Expedition is the decisive final approach to sunlight in Jonathan Heights’s eastern journey. After the Endeavor reaches the point beyond which Jonathan will not allow the ship to proceed, he leads a small party on foot through the Grave of Wood toward Bright Defile. The expedition begins as a practical departure from the limits of air travel but becomes a ritual passage through death, memory, sacrifice, and revelation. Its culmination is Jonathan’s crossing into the illuminated valley, where sunlight replaces every prior image of knowledge and freedom with immediate, overwhelming truth.

Departure from the Endeavor

The expedition is set in motion when Jonathan decides that the Endeavor should go no farther. Although the airship has reached the vicinity of the Discovery and the eastern route remains open, he identifies the ship itself as the line beyond which no vessel should pass. Proceeding by foot, he argues, will be faster than waiting for the ship, but the decision also marks a separation from the machinery, crew, and logistical protections that have carried the party through the dark world. The Endeavor remains behind as a retreat and a boundary, while Jonathan chooses to enter the final region under his own power.

The detachment is notably small. It consists of Jonathan, Eleanor McAvey, Antomine, Captain Montgomery, and six airmen, among them Airman Stutt and the two notably brawny and wiry crewmen. Most of the Endeavor’s remaining crew refuse to approach sunlight, preferring to stay aboard and repair the damaged ship. Jonathan does not fully understand their reluctance, but it makes the expedition more manageable. The group therefore embodies both commitment and refusal: a handful accept the unknown, while the larger company remains attached to the familiar darkness and the practical work of survival.

The Road through the Grave of Wood

Jonathan knows from personal experience that Bright Defile lies no more than a day’s brisk walk eastward. The party brings a supply sled, though he expects to require little of it. The route crosses the Grave of Wood, a strangely quiet place without creatures or weather to trouble travelers. Its road is made of long metal flagstones, and on either side stand the looming forms of salt bodies and wooden biers. The expedition thus moves through a landscape in which the dead are not an incidental reminder but the defining architecture of the route.

The directness of the road becomes part of Jonathan’s reasoning and part of the expedition’s symbolism. When Eleanor asks why he would choose this path after the Discovery went down, Jonathan answers that paths lead somewhere and are preferable to becoming lost among monuments or wilderness. His response is practical, but it also reveals his characteristic faith in directional movement. The road offers no safety in itself; it offers only an intelligible line. Following it means accepting whatever destination has been built into its course.

The march also exposes a change in Jonathan. He has little appetite, yet forces himself to eat hard bread and dried meat because he wants to meet the final stretch at his best. He appears unusually happy, prompting Eleanor to call the expression unsettling after his prolonged seriousness. Jonathan describes himself as merely anticipating the culmination of the journey. His anticipation is not casual excitement. It is the concentrated expectation of someone who has organized his life around a single threshold and now fears missing the instant when it opens.

The Threshold of Sunlight

The dark path runs straight east, while Eleanor and Antomine exchange remarks and Captain Montgomery mutters to his men. Jonathan alone keeps his attention fixed ahead, waiting for the arrival of the vision he has already experienced once before. As Montgomery begins to suggest stopping for the night, sunlight appears. The suddenness of the moment gives the expedition its central reversal: the object treated by the people of the dark world as myth is not merely discovered but encountered as an indisputable presence.

Bright Defile opens from a narrow valley between two mountains. A single ray descends into it, pure and bright, yet casting no shadows, only more light. The illumination makes colors more vivid than ordinary reality can sustain: greens and browns of immense trees, and reds and oranges in flowers of extraordinary intensity. Its warmth reaches the travelers even before they enter it, soothing body and soul. Sunlight is therefore presented as both environment and revelation, a physical condition that immediately alters perception and a force that makes the visible world intelligible.

The path into the valley is not harmless. Statues made of salt stand along the ancient stone road in an irregular, weathered line. Some are so old that their original forms cannot be identified; others clearly represent beings foreign to humanity. The two newest statues are human, making the danger immediate rather than merely historical. The expedition’s travelers stop at the sight of sunlight, but the salt figures show what may happen to those who advance without understanding the rules of the threshold.

The first reflected touch affects every member of the party. Each traveler is arrested by the sight and sensation, and each recognizes the truth of what is before them. Captain Montgomery says, "Well, I’ll be damned," and confirms that it really is sunlight. Yet seeing is not enough for Jonathan. He has already experienced the vision in another form and now yearns to approach the source rather than remain at its edge. When one crewman moves forward as if drawn by an invisible force, Jonathan stops him, recognizing that the impulse toward sunlight carries peril as well as wonder.

Sacrifice and Passage

The expedition’s final movement is not a simple walk across a visible distance. Jonathan experiences the approach as a passage whose cost has been accumulating throughout the journey. His empty estate burns first in memory, followed by his connections to his chauffeur and housekeeper. Other losses then become fuel for the crossing: the death of Tiuni, the destruction of Tor Ilek, the books he cast from the Endeavor, the laying of a god to rest, and the sacrifice of Angkor Leng. His lost friendship with Eleanor McAvey and his banishment from Ukaresh also join the reckoning, as does the rejection of the Players and the Game.

This retrospective accounting changes the meaning of the expedition. The road through the Grave of Wood is not merely the last geographical segment of an eastern map. It is the visible form of a life spent severing connections in pursuit of a final truth. Jonathan reaches the threshold because he has repeatedly surrendered possessions, places, companions, identities, and possible returns. The expedition therefore makes exploration inseparable from self-erasure: every step toward sunlight narrows the world to which he could go back.

At the final gap, Jonathan sacrifices his cane. He lays it like a thin sword-blade across the remaining darkness and gives up the object that has supported him throughout his travels. The gesture is both practical and emblematic. The cane has been part of his physical identity, a tool of mobility and a familiar extension of his body; surrendering it completes the sequence in which the material signs of his former life are converted into passage. He then takes the final step, leaving darkness washed by light and entering Bright Defile.

Consequences and Significance

Beyond the narrow valley lies a great green country, rising toward proud mountains beneath pure white clouds. Every leaf, blade of grass, stone, and drop of river water seems to contain the secrets of time and space. Above it stands the sun, described as older than worlds and older than time. Behind Jonathan, the lands of darkness become a dim mote suspended between sunbeams, reduced from the total world he once knew to an overlooked corner of creation.

The expedition’s consequence is therefore not simply that Jonathan reaches a destination. He acquires a new position in relation to reality. The warmth of the sun touches his face, a free wind rises behind him, and truth lies before him as liberty. He smiles at the end of the crossing. That smile completes the emotional movement begun when Eleanor noticed his strange happiness on the road, but it also confirms the cost of the achievement: Jonathan’s freedom is founded on the destruction of his former attachments rather than on their preservation.

The wider return to Beacon does not restore the expedition’s participants to an uncomplicated ordinary life. After the Endeavor returns, the destruction of Tor Ilek and the circulation of artifacts produce excitement among collectors, while nearly all the airmen become wealthy and some retire. Their fortunes attract thieves, but the veteran airmen prove difficult targets, and several would-be attackers disappear, leaving only occasional scorched shadows. Beacon’s gossiping public calls the period the Winter of Blood or, mockingly, the Winter of the Shadow. The labels reduce extraordinary upheavals to urban rumor, while Captain Montgomery soon prepares the Endeavor for another expedition. In that contrast, the Bright Defile Expedition remains both a public aftermath and a private rupture: civilization absorbs the consequences as gossip and commerce, but Jonathan’s crossing has carried him beyond the assumptions that made the old world coherent.