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| Name | Level | Zone | Occurs in Zone | Rewards |
| Karstíona, Emissary of the Trév Duvárdain | 45 | | | Victory at Minas Agar, Brúnfair's Leggings |
| Karstiona, Emissary of the Trev Duvardain | 50 | Angmar, Gath Forthnir | Minas Agar | Brunfair's Leggings, Karstiona's Doom |
| Keep It from the Enemy | 45 | Clorhir, Evendim | | Pure Essence of Athelas, Battered Arnorian Armour |
| Keepers and the Kept | 49 | Goblin-Town | | |
| Keepers of the Dead | 39 | Nan Tornaeth, Trollshaws | | |
| Keepers of the Kept | 50 | Goblin-Town, Slave Pens | | |
| Keepers of the Wood | 49 | Eregion, Glad Ereg, Gwingris | Sad Thareg | |
| Keeping Ahead of the Goblins | 50 | | Zelem-melek | |
| Keeping the Norsu Pure | 42 | Forochel, Lansi-ma | Norsu-hauta | |
| Keg-hopping Race: Kolmar's Credulity | 1 | Thorin's Gate | Thorin's Hall | |
| Keg-hopping Race: Leg It, Lar | 1 | Thorin's Gate | Thorin's Hall | |
| Keg-hopping Race: Off to the Races | 1 | Thorin's Gate, Thorin's Hall | | |
| Keg-hopping Race: Otto the Outstanding | 1 | Thorin's Gate | Thorin's Hall | |
| Keg-hopping Race: Signar's Swift Step | 1 | Thorin's Gate | Thorin's Hall | |
| Kemp's Revenge | 22 | North Downs, Trestlebridge | Greenway | |
| Kemp's Stash | 22 | North Downs, Trestlebridge | Minas Vrun | The Wheelwright's Shoulders, The Wheelwright's Earring |
| Kergrim-leaders | 58 | The Foundations of Stone, The Shadowed Refuge | | |
| Kheled-menem: Ghâshug | 52 | The Flaming Deeps | | Endrith's Shield, Ghâshug's Woe, Cloak of Kheled-menem |
| Kheled-menem: A Light in the Hand | 52 | The Flaming Deeps | | |
| Kheled-menem: Stolen Lights | 52 | The Flaming Deeps | | |
| Khibir-zamu: Relics of the Past | 48 | Moria | | |
| Khibir-zamu: Stonetooth the Savage | 48 | Moria | | Helm of Khibir-zamu |
| Khibir-zamu: Tunnellers of the Tomb | 48 | Moria | | |
| Khibir-zarur: Fragments of Shadow | 48 | Moria | | |
| Khibir-zarur: Gold in the Darkness | 48 | Moria | | |
| Khibir-zarur: the Shadows of Faerdûath | 48 | Moria | | Protector's Defence, Faerdûath's Doom |
| Kill it with Fire | 60 | Moria, The Foundations of Stone | | |
| Knee-breaker's Manual | 44 | | Caldwell Pool, Hall of Fire, Last Homely House, Misty Mountains, Rivendell, Whitcleft | |
| Knocking Heads | 39 | Evendim, The Eavespires | | Refined Celebrant Salve |
| Know Thine Enemy | 56 | Moria, Silvertine Lodes, The Deep Descent | | |
| Knowledge is the Best Defence | 15 | Bree-Land, Bree-Town, Combe Gate | Combe | Early Third Age Relic, Bronze Ingot, Carrot Seed |
| Knowledge of the Lore-master | 58 | Rivendell, Elrond's Library, Last Homely House | The Waterworks | |
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