The Grand Fury is a daily event that happens four times a day.
Two bosses appear at the given time. One of them is King Fury which is 110+ level req. to enter.
The other one is Prince which is 130+ level req. to enter.
This event requires a team of players to slay the beast in the Arena in Cursed Temple 2.
To participate in this event, you need to talk with Albus P. W. B. Dumbledore in Ricarten to teleport to the Fury Arena entrance. 
After it you need to talk with The Messenger, Saphir to teleport to the Arena, this requires a small fee.
A beast will spawn and when it was slain you will receive a big amount of exp, and a special Scroll in your distributor, that can be exchanged for random rewards.

King Fury spawns in the following hours:

• 6 AM UTC-0
• 6 PM UTC-0

Prince spawns in the following hours:

• 12 AM UTC-0
• 12 PM UTC-0

Before the event starts, there will be an announcement in the chat box 15 minutes before hand, 10 minutes and 5 minutes.
Bring potions and do not come alone, or see a swift merciless death.

*Don't forget that if you die during the event you will be teleported outside and will not receive the reward.

Reward List:

King Fury Scroll:

Sapphire.
Sapphire Force.
Costumes 8H.
Hairstyles:  N, O, P, Q, R.
Premiuns 8H: Exp Potion, Third Eye, Vampire Teeth, Mana Aura, Booster Recovery, Mp Reduction, Stm Reduction, Gravity Stone, Phoenix Egg, Hunt Power, Migal Might, Dion Power, Amplifiers, Caravan Hopy, Wing Boots, Mini Pets, Soul Potion.
Stones: Matures Stones, Cooper Bar, Crystal Fragment, Cooper Ore, Honor Stone, Ripe Stone, Aging Stone, Elder Stone.
Socket: Intermediary Runes, Drills, Toolkits, Soldering Irons.
Seals: Seal Compound, Enchantment Seal.
Souls: Soul Powders.
Skins: Holder, Remover.
Capture Crystal.
Crystal Shield.

Prince Scroll:

Sheltoms: Sapphire, Sol.
Sapphire Force.
Costumes 8H.
Premiuns 8H: Exp Potion, Third Eye, Vampire Teeth, Mana Aura, Booster Recovery, Mp Reduction, Stm Reduction, Gravity Stone, Phoenix Egg, Hunt Power, Migal Might, Dion Power, Amplifiers, Caravan Hopy, Wing Boots, Mini Pets, Soul Potion, Mega Exp Potion.
Stones: Cooper Bar, Crystal Fragment, Cooper Ore, Honor Stone, Reversion Stone, Ripe Stone, Aging Stone, Elder Stone, Arcane Stone, Enchantment Stone, Fluence Stone.
Socket: Advanced Runes, Drills, Toolkits, Soldering Irons.
Seals: Seal Compound, Enchantment Seal.
Souls: Soul Powders.
Skins: Holder, Remover.
Capture Crystal.