Oakfur is mentioned by Tigerheart when he is teaching the guardian cats the basics of battle. He gets into a crouch, and he remembers that this was the very first battle move that Oakfur had ever taught him. Tigerheart passes on the knowledge he gained from Oakfur's training to the guardian cats, in an attempt to help them face their problems.
Oakfur is also mentioned when the guardian cats come up with a plan to ambush a pair of foxes who are causing trouble. The pair of dangerous creatures are raiding the herb patches where Fierce, Spire, and the other guardian cats keep their herbs, and Tigerheart comes up with the idea to block their den with stones and dirt, so they don't return. He recalls how Oakfur had taught him this trick, saying that foxes wouldn't come back if their dens are buried.
Oakfur does not formally appear in Dawn, but is listed in the allegiances. He leaves with the rest of the Clans to find a new home. While traveling in the mountains, his apprentice, Smokepaw, dies after falling off a cliff.
Squirrelflight spots Oakfur at the first Gathering on the island with his Clanmates, Russetfur and Rowanclaw. Later, he is part of the patrol to drive off the two kittypets causing trouble in their territory. Oakfur, Rowanclaw, Thornclaw, and Cloudtail creep behind the kittypets to cut off their escape route. Oakfur tells his Clanmate, Rowanclaw, at a Gathering that it is hard not to admire Firestar's decision to take Daisy and her three kits into ThunderClan, asking if Blackstar would have turned down three extra warriors for his Clan.
Oakfur, along with the rest of a ShadowClan patrol, including Russetfur, watches Berrykit of ThunderClan struggle when he is caught in a fox trap without trying to help him, and is scolded for not following the warrior code. Later, he threatens Stormfur to step over the border, and they will show him how fierce they are.
Oakfur is with a patrol marking the border between ShadowClan and ThunderClan; as Brambleclaw's patrol attacks them, he fights against Sandstorm. He flees when ThunderClan reinforcements arrive, letting out a screech of terror. Tawnypelt remarks to Brambleclaw that she was patrolling with Blackstar and Oakfur on the RiverClan border when Hawkfrost told them that ThunderClan had been attacked by badgers.
Oakfur is part of the ShadowClan patrol that is caught stealing ThunderClan territory. He mocks Brambleclaw, saying that a blind kit, Jaypaw, had realized they were there before he did. He further insults them by calling them half-kittypets, cripples, and worn-out deputies, referring to Graystripe. Brambleclaw threatens him that if they move the border, they will have to fight for it, and Oakfur confidently asks him if he's sure ShadowClan won't win. He lifts his tail, and many more ShadowClan cats appear over the rise. As the battle ensues, he attacks Firestar with another warrior until Lionpaw pulls Oakfur away and attacks him, flinging him against a tree and dazing him.
Later, Littlecloud comments to Leafpool that Oakfur is still limping, and Leafpool tells him he should try wrapping his paw with comfrey every night. Oakfur later insults ThunderClan at a Gathering, calling them kittypets and outsiders, before Squirrelflight calms the Gathering with her idea of the daylight Gathering.
Oakfur is part of a ShadowClan patrol that catches Berrynose and Birchfall in ShadowClan territory. He comments that ThunderClan never cared about boundaries. When Firestar comments about how the border scent is faint, Oakfur tells him that the patrol is the evening patrol, and they are there to renew the scent markers.
Oakfur does not formally appear in The Fourth Apprentice, but is listed in the allegiances. His apprentice, Tigerpaw, has become a warrior now and received the name Tigerheart. Oakfur now has a new apprentice named Ferretpaw.
Oakfur is only seen once on a patrol with his apprentice, Ferretpaw. The patrol finds Jayfeather and Squirrelflight near the ShadowClan border. The ShadowClan cats bring them to the camp so Jayfeather and Squirrelflight can ask Littlecloud for help with Briarlight, since her legs were crushed.
When Rowanclaw shows Pinepaw how she could have defended herself better against Hazeltail in the recent battle against ThunderClan, Rowanclaw tells Oakfur to pretend he is Hazeltail and he and Pinepaw begin to practice. Eventually, Pinepaw wins and the Clan cheers. Later, he is seen in Ivypaw's dream when she sends him flying over her shoulder with a single paw.
When all the Clans are united before the battle, Cloudtail remarks that he can't believe that Oakfur, Smokefoot, and Snowbird, who are ShadowClan warriors, are in ThunderClan camp. Firestar welcomes them into the camp, giving Cloudtail a warning look for his remark. Later on, when Stoatpaw sends a message saying that Blackstar is losing a life, panic lights Oakfur and Snowbird's eyes. He accompanies Lionblaze, Graystripe, Snowbird, and Smokefoot during the battle as they run towards the ShadowClan border. He and Snowbird help Toadfoot, whose pelt is ripped and bloody.
When Violetkit questions her place in ShadowClan, Oakfur stays silent, which jabs at the kit's heart. After Littlecloud's death, the brown tom sits with the other elders. Later, during a Clan meeting, Oakfur tells Rowanstar that mentors should be able to keep their apprentices under control, just like it was in his day. Moons after, Violetpaw returns from living with the rogues. Kinkfur whispers to Oakfur, and the black-and-white she-cat wonders what they're talking about.
Many cats in ShadowClan fall sick with a mysterious illness, including him. Puddleshine doesn't know how to heal them, and says he's tried everything to help the ill cats. The medicine cat says that Oakfur might not survive much longer, as he's old. The brown tom and Wasptail wheeze side by side in their nests, fur matted and muzzles dripping. When Twigpaw is in ShadowClan, she helps Puddleshine by getting water for Oakfur. The gray she-cat holds wet moss to Oakfur's lips, and with a grunt, he swallows. Twigpaw then gives herbs to each sick cat, rubbing pulp for them to lap up.
After Puddleshine gets lungwort, Oakfur and most of the other sick cats recover. The brown tom sits in the clearing while Dawnpelt gently washes his pelt. Violetpaw makes Oakfur a new nest, and Ratscar says approvingly that he'll like it. The apprentice tells him that his dentate is allowed to return here tomorrow, and she wants him to be comfortable. Ratscar sadly meows it will be quiet in the elders' den without Kinkfur, as Oakfur isn't much of a talker.
Oakfur lets out a sigh of relief after the tick drops off him. He thanks Violetpaw, who was helping him with his ticks, and talks about ShadowClan. The elder declares he'll be ShadowClan until he dies, which alarms Violetpaw. He says young cats don't understand loyalty anymore. When Violetpaw leaves the den with Needletail, Oakfur protests, saying she didn't get all the ticks off.
Before the battle for RiverClan's territory, Violetpaw looks down the line of rogues, and sees Oakfur and Ratscar among them. Darktail then informs Loki, Zelda and Max that they'll fight first, along with the elders, and Violetpaw questions Darktail's motives, and hurriedly explains that Oakfur and Ratscar are too old. The two elders watch Darktail and Violetpaw with grim expressions. The apprentice thinks about how the elders haven't had any recent experience in fighting. When the battle begins, the kittypets spring forward, and Oakfur and Ratscar are seen lumbering after them.
While fighting, Violetpaw pauses to check on the elders and kittypets. Oakfur is seen badly hurt, lying down on the edge of the Thunderpath, struggling to stand.
In "Blackstar Speaks: Ambush by the Lake", Oakfur is part of the patrol, consisting of Blackstar, Tawnypelt, Cedarheart, Rowanclaw, and himself, to claim part of RiverClan territory for ShadowClan. Oakfur and Cedarheart are sent into the wooden nest on ShadowClan territory. The patrol meets a RiverClan patrol, consisting of Mistyfoot, Swallowtail, Stonestream, and Voletooth. After Blackstar orders the attack, Oakfur is seen fighting with Stonestream. Blackstar then orders the patrol to surround the RiverClan cats, which Oakfur obeys, standing next to his leader. He curls his lip at Stonestream when the RiverClan warrior takes a step toward him, snarling when Stonestream steps back that he made a wise move.
Oakpaw is a ShadowClan apprentice, and his mentor is Wetfoot.
On a hunting patrol, Oakpaw pricks his ears, remarking that Wetfoot is leading the patrol, but his mentor informs him that Tigerclaw can lead them. As they go on, Oakpaw notes that they usually scent their prey, but Tangleburr cuts in. When Nightstar dies, Tigerclaw announces it just as Oakpaw is about to drag a shrew from the fresh-kill pile. When Jaggedtooth and Nightwhisper become warriors, Oakpaw complains that it isn't fair, as they didn't have to train, and Tigerclaw fixes a cold glare on him, making Oakpaw duck his head.
During a training session, Rowanpaw strikes a blow on Oakpaw, making him sprawl on his back. Tigerclaw tells him to go for his hind legs, but Rowanpaw dances out of his way, taunting Oakpaw about his speed. Tigerclaw asks him if he is going to let Rowanpaw speak to him like that, and Oakpaw, scrambling to his feet, refuses. He then launches himself at Rowanpaw, flailing his paws, and Tigerclaw is satisfied that Oakpaw unsheathes his claws and draws blood. When Runningnose wishes to speak privately with Tigerclaw, the latter checks to make sure that Oakpaw and Rowanpaw aren't killing each other.