In Chapter 2, Carl and Princess Donut enter the First Floor beneath Seattle, evade a goblin ambush, and reach a Tutorial Guild.
Descent from the surface
At the end of Chapter 1, Carl has chosen the illuminated entrance because the exposed surface offers little chance of surviving the cold. He is carrying Donut, wearing a jacket and Beatrice's ill-fitting pink Crocs, and has no weapon or supplies. The staircase in Chapter 2 is wide enough for a crowd, but Carl sees nobody else there. That absence matters to him after the destruction above: he has come from a city of nearly a million people into an apparently prepared entrance without meeting another survivor. Donut clings to his shoulder while he descends. Warmth gradually returns feeling to his freezing legs and feet, although the resulting pain makes clear that reaching the entrance has not erased the physical effects of exposure.
The steps lead to a marble landing and enormous carved doors. Fishlike or demonic shapes appear in their decoration, and Carl cannot reconcile the elaborate structure with the fact that it did not exist moments earlier. He connects its appearance to the announcement that Earth's interiors and their contents have been taken apart and used to make the dungeon. The staircase is therefore shelter from immediate exposure, but it is also part of the machinery created from the ruined world. Carl has no explanation for who built the precise surroundings or how the transformation was accomplished. He does, however, begin testing what the place presents to him instead of taking its welcoming warmth as proof of safety.
An information box appears when he studies the carving on the door. It identifies the depicted species as Kua-Tin and connects them to the Borant Corporation. Carl discovers that he can reopen the box by focusing on its subject and dismiss it with a mental action. His first response is to consider whether the experience might be a simulation, but the pain in his feet keeps the immediate problem concrete. This is his first practical demonstration that dungeon information is placed directly in his perception and that at least some of it responds to his attention. He pushes open the door and enters a broad, torchlit passage with branches ahead.
Registration on the First Floor
Donut bites Carl's hand and leaps into the passage. When Carl follows, the large doors shut behind him and the light at the entrance disappears. An exuberant new voice welcomes him to the First Floor. A countdown appears in his field of vision, already slightly below the five days announced for the floor. Unlike the optional information box over the carving, this message and timer cannot simply be dismissed. Carl can escape the display only by closing his eyes. The difference tells him that the interface includes compulsory instructions as well as information he can call up voluntarily.
Donut reacts to something in the air too. Carl focuses on her and sees that the dungeon has registered her separately as crawler number 4,119: a level-one cat with no class. He is then named crawler number 4,122, identified as a level-one human, and told that race and class choices become available after descent to the third floor. The assigned numbers show that Donut is not merely baggage carried by a human entrant. Carl does not yet understand the implications of her status, but the system treats her as a participant before she can speak or make plans with him. He also learns that his starting statistics have been assigned from his existing physical and mental profile, although he cannot yet find the menu needed to inspect them.
The achievement notices come in a rapid series. Bringing a cat earns Carl a Bronze Pet Box, and being the first crawler to enter a world dungeon with a cat earns him a Legendary Pet Box. Entering among the first five thousand crawlers gives him a Silver Adventurer Box. He receives a Bronze Adventurer Box because he has brought no supplies, a Gold Apparel Box because he has no pants, and a Bronze Weapon Box because he has no weapon. A separate notice marks him as entering without human companions and offers no reward. These are distinct judgments about the circumstances in which he arrived, rather than prizes for feats he deliberately attempted. Their mocking descriptions introduce an intelligence that observes vulnerabilities as opportunities for spectacle.
The promised boxes do not immediately solve any of those vulnerabilities. Carl cannot make the menu appear by speaking commands, and he has no idea where the rewards have gone or how to use them. He remembers the earlier recommendation to find a tutorial guild and looks toward a sign in the tunnel. The contrast is sharp: the system has identified him, classified Donut, issued several rewards, and displayed a timer, but has left a new crawler unable to use the resources that might help him survive. Carl's next objective is consequently practical. He needs to reach someone who can explain the interface before he can benefit from the items it claims to have given him.
The false turn toward the guild
A bright sign points down a narrow, unlit side passage and names a tutorial guild. Carl pauses because the darkness makes the route suspect, but steps into it. An achievement immediately marks the decision as entering an obvious trap. Lights flare, machinery starts, and goblins laugh from the ambush. Carl turns back into the main tunnel with Donut following him. Both pink Crocs fly off as he pivots and runs. From this moment he is barefoot; he did not enter the dungeon barefoot. Losing the shoes removes his only footwear at precisely the point when speed and footing become essential.
The pursuing machine is a Goblin Murder Dozer, a steam-driven vehicle on treads with a rotating spiked wheel at its front. Three goblins ride it: two identified as level two and an engineer at level three operating the controls. Carl sees both the monsters and their system descriptions while fleeing. The contraption is dangerous because its size and momentum can crush him, but those same properties limit how quickly it can turn. His first encounter with dungeon monsters is thus also a lesson in comparing what an enemy can do with the shape of the surrounding passages. The information boxes name the threat; Carl must work out the route himself.
At a junction, a very narrow dark hallway would exclude the dozer. Carl rejects that apparently easy escape because it could lead into another trap. Continuing straight would leave the machine time to catch him. He instead takes a wider right-hand passage that the dozer can enter but cannot turn into quickly. Donut stays beside him as the goblins struggle with the corner. The choice buys time without claiming that the new route is safe. In that passage, Carl spots a much plainer wooden door marked as a tutorial guild. Its sign is difficult to see because the lettering nearly blends into the brick, a striking difference from the conspicuous sign that lured him into the ambush.
Reading the understated sign gives Carl another achievement. Its reward makes official dungeon signs easier for him to see and places nearby guilds on a minimap. He still does not know how to access the map, so the immediate value is confirmation that he has found a real guild entrance. The door is locked. Carl knocks and calls for help while the dozer remains nearby. The two level-two goblins abandon the slow vehicle and approach on foot, turning a chase into a fight at the threshold of the place that should teach Carl how to survive.
Mordecai at the chained door
A small ratlike figure opens the guild door only as far as its chain allows. At first he mistakes Carl for a monster and says mobs are barred. Once he recognizes a crawler, Mordecai admits he had not realized the dungeon had opened. Carl asks to be let inside, but the goblins have already reached the doorway. Mordecai says he cannot open the guild to a crawler while mobs stand directly outside it. The delay has an immediate cost: although the guild is within reach, Carl has to face attackers before he can enter. Mordecai's conduct is governed by access rules that he understands better than Carl, and he does not initially waive them because the crawler is in danger.
Carl tries to obtain at least enough information to use his rewards. Mordecai identifies the Awards and Boxes area of the inventory menu, then explains that Carl cannot access it until completing the tutorial. He also says boxes cannot be opened outside a safe zone. These limits account for why the achievement prizes have not helped during the pursuit. For Carl, the guild is more than a source of advice: entry is a prerequisite for gaining access to basic tools and for using the rewards he already possesses. The exchange takes place while goblins are moving into striking distance and the dozer is preparing to come down the hall.
One goblin's improvised club loses its pineapple head as he attacks. The other swings at Carl, who steps inside the blow and lands a jab followed by a hook. Only after the goblin is hurt does Carl see a health bar above it. The bar shows that the blows have taken more than half its health. Carl is surprised by how readily he has injured a creature that moments earlier looked like an unfamiliar monster. His Coast Guard training gives him some experience with hand-to-hand combat, but he has not been in an actual fight for years. The second goblin retreats toward the dozer when its companion falls.
Carl kicks the downed goblin and then kills it by repeatedly striking its head against the stone floor. He briefly recoils from the prospect of killing an opponent who is comparatively easy to hurt, but sees the armed machine returning and decides against leaving the goblin alive to recover. The scene establishes a harsh distinction between the interface's playful treatment of combat and Carl's bodily experience of it. He feels pain in his fists, sees the health bar drain, and makes the decision himself. The dungeon supplies a numerical measure of injury; it does not remove the moral weight of finishing a disabled enemy.
Donut crosses the threshold
Mordecai suddenly protests that someone cannot come inside. Carl realizes he is speaking to Donut, who has slipped through the partly open door while he fought. She has not solved the problem by obeying Carl's directions or by attacking the goblins. Her independent movement has instead put a registered crawler inside a guild that Mordecai says he was not permitted to open under the circumstances. Mordecai is alarmed that he might be held responsible. Carl presses him again to unfasten the chain while the space directly outside the door is briefly clear.
Mordecai closes the door long enough to remove the remaining chain, then opens it fully. Carl rushes inside as the Murder Dozer passes the entrance. It rolls over the dead goblin, and the vehicle slides onward despite its brakes. Carl shuts the door on the surviving riders. The chapter ends at that boundary, with Carl and Donut together inside the guild and the immediate pursuit outside. The next chapter confirms that the hall is a safe zone, though the floor countdown continues there. It also shows that Carl still cannot open his pending notifications before completing the tutorial. Reaching shelter ends this chase, not the larger time pressure or his dependence on learning the dungeon's rules.