Visbane's Folly

The Visbane's Folly Crafting Altar can be found at the top of the tower in House Deneith

It can be used to upgrade items with the "Unraveling Enchantments" atribute found in the The Tide Turns quest. ( and other quest?)

Geting the Items to Upgrade
Non-Upgraded Items (All items drop in the end chests in "Turning The Tide" and are min level:5. bind on Equip and can be upgraded the same way, They also have a high chance of appearing on the 1-shot chain end reward):
 * Eternal Wand - Snowball Swarm (CL:3, 5/rest) Glaciation II [Wizard, Sorcerer only, UMD:25]
 * Bracers - Armor Bonus +4, Will Save +1
 * Helm - Natural Armor Bonus +1
 * Rapier - Crit: 19-20/x2, Devotion I, Silver
 * Bastard Sword - Crit: 20/x2, Shocking Touch (1 Lightning damage only)
 * Kukri - Crit: 19-20/x2, Damage Mod: INT, Deception
 * Heavy Chainmail - +1 Medium Armor (AB:7, MDB:1, ACP:6, SF:40%)
 * Docent - +2 Plain old docent

Sigils (Ingredients, they go into your bag. They all also have a 100% chance of appearing on the 1-shot chain end reward):
 * Sigil of the Lion - Drops in the gold key chest and end chest in The Black Loch or Spies in the House end chest
 * Sigil of the Goat - Drops in the end chest in Bargain of Blood or Spies in the House end chest
 * Sigil of the Dragon - Drops in the end chest in Storming the Beaches or Spies in the House end chest

Upgraded Items
Upgraded Items (All items are upgraded by putting them in the altar in house deneith: Visbane's Folly, along with 3 sigils you find in the quests/end rewards) Running the quests on higher difficulties will greatly increase the droprate. Droprate is around 70-90% for Epic, so there's no issue getting the upgraded versions first. Once Upgraded, they become bound to account.
 * Winter's Wrath (Eternal Wand) - Snowball Swarm (CL:5, 25/rest) Glaciation III Lesser Cold Augmentation III, [Wizard, Sorcerer only, UMD:25]
 * Jidz-Tet'ka (Bracers) - Armor Bonus +5, Will Save +2, Tet-zik, The Enlighened Change (Improves monk stances)
 * Chimera's Crown (Helm) - Natural Armor Bonus +1, Spell Resistance (15), Minor Lesser Dragonmark Enhancement
 * Elyd Edge (Rapier) - +1, Attack Mod: CHA, Devotion II, Silver, Anthem (Regenerates Bard songs)
 * Chimera's Fang (Bastard Sword) - Shocking Touch (1 Lightning damage only), Maiming, Shatter +4, Dragonshard * Focus: Sentinel (enhances dragonmark feat)
 * Midnight Greetings - (Kukri) - +1, Damage Mod: INT, Deception, Assasin's Training (Grants Kukri Proficency to Assasins and allows monks to stay centered)
 * Deneith Heavy Chain (Chainmail) - +1 Medium Armor (AB:9, MDB:1, ACP:6, SF:40%) Lifeshield
 * Blademark's Docent (Docent) - +3, Life Shield, Invulnerability

Epic Forms
Epic Forms: (All items are Epic'd by putting the upgraded version, along with a matching scroll, seal and shard into the Altar of Epic Rituals in the Twelve or Visbane's Folly in House Deneith) Scrolls drop from any monster in the sentinels series. Seals are found in the any Epic Chest. Shards drop only from the Epic Chest in "Turning the Tide".
 * Epic Winter's Wrath (Eternal Wand) - Otiluke's Freezing Sphere (CL:20, 8/rest) Superior Glaciation VII, Improved Glaciation IX, Lesser Cold Augmentation IX, [Wizard, Sorcerer only, UMD:45]
 * Epic Jidz-Tet'ka - Armor Bonus +8, Will Save +5, Wisdom +6, Tet-zik, The Enlighened Change (Improves monk stances), Yellow Slot
 * Epic Chimera's Crown (Helm) - Natural Armor Bonus +4, Spell Resistance (25), Lesser Dragonmark Enhancement, Yellow Augment Slot
 * Epic Elyd Edge (Rapier) - +6, 2d6 base, Attack Mod: CHA, Charisma +7, Superior Devotion VI, Silver, Songblade, Anthem (Regenerates Bard songs), Red Slot
 * Epic Chimera's Fang (******* Sword) - +6, 2d10 base, Shocking Burst, Lightning Strike, Maiming, Shatter +10, Destruction, Greater Dragonshard Focus: Sentinel (greatly enhances related dragonmark feats)
 * Epic Midnight Greetings - (Kukri) - +6, 2d4 base, Damage Mod: INT, Deception, Finesse, Disintegration, Assasin's Training (Grants Kukri Proficency to Assasins and allows monks to stay centered), Red Slot
 * Epic Deneith Heavy Chain (Chainmail) - +6 Medium Armor (AB:15, MDB:1, ACP:6, SF:40%) Lifeshield, DR5/Epic, Blue Slot, Colorless Slot
 * Epic Blademark's Docent (Docent) - +6, Reinforced Plating +2, DR 5/Epic, Life Shield, Blue Slot, Colorless Slot

New Effects

 * The Tet-zik, The Enlightened Change: - Air Stance: +10 insight to jump, Fire: +25% Insight to Healing amp, Earth: +1 unarmed damage die step, Water: 1d6 dex + Paralyzes on a natural 20
 * Anthem: When wielded by a character with Bard levels, This weapon begins to hum an inspiring tune. Your bard songs regenerate slowly over time. Rate: 1 Bard song every 5 minuits.
 * Eternal Wand: Eternal Wands recharge over time if they are not being used. For the epic one, it's around 4-5 minuits per charge - anywhere in any zone. Using a rest shrine fully fills the charges.

Known Issues
Some items have border issues:
 * Winter's Wrath (upgraded and epic): Has a silver border. Lacks a gold-border. Gold Border usually denote unique items, which it is.
 * Midnight Greeting (upgraded and epic): Has a platinum border. Platinum borders usually denote a raid-quality item. This item is no where near raid-quality. Should be gold.

Source: http://community.codemasters.com/forum/newbie-q-397/412535-elyd-edge-question.html