At Update 19, this zone gained a Heroic option as a level 18 Wilderness area, and the quests as well gained heroic level 18 versions. This is the first zone in DDO that got the reverse epic upgrade.
The quest chain/story arc is called The Netherese Legacy in your Quest Journal. All quests are found in The High Road wilderness adventure area. Take the Harper's Cart in the northwestern section of Eveningstar to start the adventure.
You must complete the first four quests (in any order) before you can enter The End of the Road. Once all quests are completed, return to Rina Belostos to claim your final reward.
In the Forgotten Realms, every third completion of a quest chain will provide a reward list with a 50% chance for each item that could have normally appeared in that list to appear. Completions which are not the third or a subsequent multiple of three have a 25% chance for those items to appear. Only the ML23 versions of the items are available in this way.
The end reward of the whole chain given by NPC Rina Belostos after completing all of above quests (called Netherese Legacy in your quest journal) is a mix of items that can be pulled from one of the optional chests in the chain (e.g. Nether Grasps), as well as 3 Commendations of your choice. So a player has the chance to pull an item directly in one of the quests or get it at the end of the chain.
Note that you can talk to Rina and run the chain again - in any order, as long as you do all five quests - for another reward.
NOTE: Named items that can appear on this end reward list will have a 100% chance of appearing on every third completion of the story arc.
You can select from one of these items when talking to Rina Belostos in the Eveningstar at the end of the quest chain. All items are Bound to Character on Equip, and are the Epic Normal (ML 23) version, regardless of whether the quest chain was completed running Heroic or Epic level.
Shield Bashing +10% Shield Bashing +10%: +10% Enhancement bonus to your chance of a Secondary Shield Bash. This stacks with bonuses granted by any relevant feats.
DRDamage Reduction 10/Piercing: Reduces physical damage by 10, except from Piercing attacks. 10/Piercing
Greater GoodGreater Good: This weapon is infused with the ultimate power of Good. It does an additional 2 to 12 damage to non-good targets and can only be wielded by Good-aligned characters.
Greater Stone PrisonGreater Stone Prison: This weapon is invested with the power of the earth. On an attack roll of 20 which is confirmed as a critical hit it will attempt to turn the target to stone, as the Flesh to Stone spell. A successful Fortitude save (DC 33) negates this effect.
ImpellentImpellent: This weapon is pulsing with magical force. It deals an additional 2 to 12 force damage on a successful hit.
Seeker +8 Seeker +8: Provides a +8 Enhancement bonus to confirm critical hits, and a +8 Enhancement bonus to critical hit damage (before multipliers are applied).
Absolute LawAbsolute Law: This weapon is infused with the ultimate power of Law. It does an additional 2 to 12 damage to non-lawful targets and can only be wielded by Lawful-aligned characters.
AlignedAligned: This weapon transmutes into a form that is able to bypass any alignment based Damage Reduction. (Chaotic, Good, Evil, Lawful)
Heartseeker VHeartseeker V: On Critical Hit: 11 to 66 Piercing damage from weapons with a x2 Critical Multiplier, 11 to 88 Piercing damage from weapons with a x3 Critical Multiplier, and 11 to 110 Piercing damage from weapons with a x4 or greater Critical Multiplier.
Striding +30%Striding +30%: This item makes you more fleet of foot, giving you a 30% Enhancement bonus your movement speed.
Ghostly Ghostly: Equipping this item causes you to become partially incorporeal. Your melee attacks do not roll a miss chance for Incorporeal targets. Enemy attacks have a 10% chance to miss you due to incorporeality. You receive a +5 enhancement bonus to your Hide and Move Silently skills.
BlurryBlurry: Equipping this item causes you to become slightly blurry. Attacks from enemies have a 20% chance to miss you due to concealment.
Ghostly Ghostly: Equipping this item causes you to become partially incorporeal. Your melee attacks do not roll a miss chance for Incorporeal targets. Enemy attacks have a 10% chance to miss you due to incorporeality. You receive a +5 enhancement bonus to your Hide and Move Silently skills.
Elemental Absorption +10%Elemental Absorption +10%: Passive: 10% Enhancement Bonus to Acid, Cold, Fire, and Electrical Absorption. (Absorption reduces damage from an element by a percentage, after resistance have been taken into account.)