Sir Rendlegore, usually called Rend, is a Tummy Acher bonded to Carl during the Ninth Floor's Faction Wars. He is the regenerated successor to Tserendolgor's pet Garret. A fifth death returns the creature to infancy, removes his name and memories, and requires a new bond. Ren entrusts him to Carl before her own death. Under Carl's care, Rend grows from a fist-sized, untrained pet into a durable combatant whose appetite, rolling attack, and attachment to Mongo affect both the Royal Court's daily life and its battles.
Ren's final gift
The separation between Garret and Rend begins during the Eighth Floor conflict with Quan Ch. Ren's team is caught near a collapsing exit after a fight involving Quan, a summoned death worm, and the other crawlers gathered there. Garret, already a large and experienced Tummy Acher, has tried to protect Ren in the fighting. Ren concludes that she will not continue to the next floor. She gives Carl her useful equipment and chooses to secure her pet's future before ending her own crawl.
Ren explains that Garret has already died and regenerated four times. His known weaknesses include Sylvan crystal, and she possesses a knife made from it. Each regeneration increases a Tummy Acher's strength but adds a potentially lethal vulnerability. The fifth death is different: it returns the pet to level one and, according to the creature's rules, erases his memories. Ren is uncertain whether the loss of memory will be as complete as the system claims, but she knows that keeping Garret with her will leave him without a caretaker when she dies.
Ren uses the knife to kill Garret. His body immediately shrinks into an unconscious infant with short legs, a protruding single tooth, and no name. She places him in a pet carrier and gives the carrier to Carl. She also warns him about the creature's known dietary weaknesses and a newly acquired fifth weakness called Reaper Gaze, whose effect she does not understand. Ren's instructions are practical as well as affectionate: Carl must feed the pet to establish a new bond, learn what could kill him, and choose a new name. The transfer preserves the Tummy Acher's life and potential, though it cannot preserve Garret's former experience as a companion to Ren.
A new bond and name
Carl keeps the infant in his carrier until the party is established on the Ninth Floor. Princess Donut initially interprets the unexpected pet as a threat to her and Mongo's place with Carl. The creature's first appearance makes a different impression. Smaller than Carl's fist, he stands on two stout legs with sparse dark hairs on his head and the same pronounced underbite Garret had. Mongo almost eats him, and the baby willingly hops into the dinosaur's open mouth. Mongo swallows him, then brings him back up unharmed. The encounter is startling to the crawlers, but the Tummy Acher continues giggling and tries to approach Mongo again.
The creature's interface description confirms the consequences of the reset. He is level one, unbonded, and recorded as having died five times; the cumulative statistical bonus from those deaths remains. His five weaknesses are visible only to a bonded owner or someone holding him in a carrier. The description identifies Tummy Achers as exceptionally resistant, voracious creatures with defensive abilities and a battlefield attack called Wrecking Ball. It also imposes an immediate limit on Carl's apparent safety net: this individual cannot regenerate if killed before reaching level five. Carl therefore needs to train and protect him before treating regeneration as a fallback.
The new bond forms sooner than Ren predicted. Carl offers him a bowl of chowder from a malfunctioning food box, and the infant dives into it. The interface then recognizes Carl as his owner and opens a bonded-pet tab. The pet pushes the remaining food toward Mongo, who finishes it. That shared meal follows the awkward swallowing incident and marks the start of their companionship. Donut objects to treating the infant as a numbered replacement for Garret; she insists that his name should acknowledge the past while belonging to the creature he has become.
Louis proposes Sir Rendlegore, with Rend as the short form. The honorific fits Donut's royal court, and the rest of the name commemorates Ren. Carl accepts it and enters it into the pet interface. The name honors the crawler who gave Rend a future without claiming that the infant retains Garret's memories. Soon afterward, Rend sleeps at Carl's feet while the group prepares for the faction war.
Growth and behavior in the Princess Posse
Rend and Mongo become close companions despite their first meeting. Rend learns to climb onto Mongo's back and rides him through the Princess Posse's spaces. They play together while Carl and the other crawlers attend to recruits, alliances, and war preparations. Their shared interest in food and alarming things to chew on also creates trouble. Rend gnaws a pen while Juice Box and Carl review documents, chews Carl's hair while perched on his shoulder, and joins Mongo in trying to lick a bloodied axe. His small size does not make him a passive accessory; he moves independently and needs supervision whenever the party is distracted.
Carl's first concerted effort to level him comes in a fight against skunk-like mobs. Carl initially holds Rend in one arm and directs him to bite a dazed enemy while the other crawlers attack. Rend tears through the creature's neck and quickly turns on more targets. As he gains levels, his body expands from a tiny meatball to roughly beach-ball size, and his high giggle becomes lower. He begins moving among the paralyzed skunks on his own, biting several in succession. By the end of the fight he is level eight, past the dangerous threshold below which death would prevent regeneration. Carl still considers him insufficiently trained for the war ahead.
The training also demonstrates the gap between Rend's cheerful manner and what he does in combat. He responds to Carl's directions, but he treats torn flesh and dead enemies as food. During later skirmishes against the Dream's forces, he makes his first solo kills, including a zebra mount too large for him to swallow despite his efforts. Near Shanty Town, Katia feeds him bacon while Mongo tries to steal it. Rend cries when he loses the first piece, then takes another gently from Katia's hand. Donut's concern that he might bite off the hand is based on his earlier behavior, but the exchange shows that he can restrain his appetite with someone he trusts.
Other crawlers also see more than a weapon in him. When Prepotente breaks down during a conversation, Rend inexplicably cries as well, then rubs against the goat's leg and purrs. In a tense exchange between Katia and Bautista, he stands between them and watches, giving an uncertain giggle. These moments do not establish that he understands their disputes. They do show him responding to the people around him in ways that differ from his relentless feeding during battle.
Limits, weaknesses, and battlefield use
Rend's durability has strict conditions. The interface says he can regenerate after death only if his body remains intact and he has reached the necessary level. Every death grants another statistical increase but also another random weakness, often capable of killing him instantly. Garret's reset has already left Rend with five weaknesses, including the newly acquired Reaper Gaze. The description warns that deliberately killing a Tummy Acher for strength is dangerous because later weaknesses are more likely to involve common exposures. Rend's existing bonus is therefore valuable, but Carl has reason to prevent additional deaths rather than seek them.
His size and speed change the way Carl deploys him. Early in the war Carl stores Rend in a carrier when he cannot keep up with a fast advance. As Rend grows, he becomes able to run with the group and absorb attacks that would stop a less resistant creature. During a defense near the Princess Posse's castle, pulse blasts knock the level-ten pet backward without causing serious injury. Carl also assigns him to guard a captive rhinoceros outside a throne room, expressly telling him not to eat the prisoner. Rend circles the captive, but later tries to swallow the foot of a restrained mercenary until Carl intervenes. His appetite makes him useful in a fight and unreliable as an unattended guard.
Before an assault on the Madness castle, Rend receives the Enchanted Tooth Cap of Hi-Yo Silver, fitted over his only tooth. It lets Carl summon the pet from roughly five kilometers away with a short cooldown. The effect draws Rend rapidly toward Carl instead of simply teleporting him; obstacles along the path may be struck or broken. Carl recognizes the risk and sees a possible combination with Wrecking Ball, which increases Rend's mass and speed while he rolls. The tooth cap gives Carl a way to turn a normally short-range pet attack into a forceful approach across a battlefield.
Rend continues to accompany Carl through the castle fighting. He enters the Madness castle after Carl and reacts to the interior with a deeper, more intimidating giggle than he had as an infant. He kills an already unconscious taurin mercenary and plays with the resulting gore, prompting Carl to reprimand him. When Carl orders him to remain with Jamal and the other survivors, Rend later runs after Carl anyway. These episodes show both the advantage and cost of his loyalty: he follows Carl into dangerous spaces, but does not always stay where a tactical plan places him.
Gustavo and Mongo
Rend's most consequential intervention comes during the fight with Lucia Mar's dog Gustavo. The dog has already been a formidable opponent for Carl's allies. In the clash near Shanty Town, Gustavo's Porcupine Defense drives quills into Mongo's mouth and body, leaving the dinosaur critically injured. Carl is also exposed to attacks from a gale tower. Rend is some distance away, so Carl activates the tooth cap to pull him toward the fight, then calls for Wrecking Ball as Gustavo and Mongo stand between the pet and Carl.
Rend rolls in with increased mass and speed. His attack destroys the back half of Gustavo and kills the dog, stopping the immediate threat to Mongo. Rend comes to a halt close to Carl, who praises him, and then takes a gale-tower bolt without being knocked far. Another bolt strikes him while Carl attends to the aftermath. The scene establishes the practical value of the tooth-cap upgrade: Carl can bring Rend into a fight at the critical moment and use the pet's own attack along the line of travel. It also exposes Rend to the hazards through which he is summoned.
Mongo survives, although he is bloodied and badly hurt. Rend returns to him and licks gore from the dinosaur's neck, while Donut thanks Rend for saving her boy. Her gratitude is a marked change from her fear that Carl's new pet would displace Mongo. The two animals' friendship has become a protective relationship in battle. At the close of the Ninth Floor, Rend remains with Carl and Donut while the larger group makes its final preparations and evacuates. He is still the creature Ren entrusted to Carl, but his new bond, name, growth, and actions belong to his life as Rend.