Valhalla Questline guide
On Olympus server, Valhalla questline consists of two parts only.
It is highly recommended to do it after Act 1, as combination of both Valhalla parts and 5.2 questline will result in getting 99 level.
Valhalla part 1
First part will increase your character level approximately from 85 to 90. Quest can be taken from Barni's Soul in NosVille.
Receive the quest at Barni's Soul in Nosville
An Unexpected Reunion
Have a conversation with [Barni's Soul]
Reason
Have a conversation with [Barni's Soul]
Messenger of the Gods
Have a conversation with [Frigg]
The Warrior's Test
Hunt 30x [Wolf]
Quest Reward: EXP 
The Warrior's Test (2)
Hunt 30x [Lion Wolf]
Quest Reward: EXP
The Warrior's Test (3)
Hunt 10x [Strong Lava Golem]
Hunt 10x [Strong Skeleton Warrior]
Hunt 10x [Foggy Colossus] Enter the map from [Mountain Cave 2]
Hunt 10x [Beast]
Quest Reward: EXP
Recognition
Have a conversation with [Frigg]
Finding Allies
Have a conversation with [Frigg]
Another Meeting (1)
Have a conversation with [Ragnar]
Another Meeting (2)
Have a conversation with [Ragnar]
Gambling Debts
Have a conversation with [Ragnar]
Gambling Debts (2)
Have a conversation with [Ragnar]
Negotiations
Have a conversation with [Ragnar]
Hard work
Have a conversation with [Teodor Topp] in [Nosville]
Steely Reserve
Deliver [Iron Ore] x20 to [Teodor Topp] 
Quest Reward: EXP + 875k Gold 
Gigantic Chicken
Hunt [Gigantic Gamecock] in [Fernon Outpost]
Quest Reward: EXP
Clear the Transport Routes
Hunt 10x [Small Wasp]
Hunt 10x [Large Wasp]
Quest Reward: EXP
Clear the Transport Routes (2)
Hunt 1x [Cappen]
Hunt 20x [Kangpen]
Hunt 20x [Jackpen]
Quest Reward: EXP
Stop the Thief
Hunt 22x [Wollet]
Quest Reward: EXP
Smells like trouble (2)
Succesfully Complete 2x [Mother Cuby] raid 
Quest Reward: EXP
Smells like trouble (3)
Succesfully Complete 2x [Ginseng] raid 
Quest Reward: EXP
Smells like trouble (4)
Succesfully Complete 2x [Dark Castra] raid 
Quest Reward: EXP
Collecting Debts
Hunt 1x [Lace]
Quest Reward: EXP
I've Got My Eye on You!
Have a conversation with [Ragnar]
Quest Reward: Viking armour (30 days)
The Journey Continues
Have a conversation with [Frigg]
Quest Reward: EXP and 10k Reputation
Valhalla part 2
Second part can be received from Ragnar in Rock Cliff. Whole questline will increase your character level approximately from 95 to 99.
Receive the quest at Ragnar in Rock Cliff
Return
Go to Midgard (Follow the arrow)
Quest Reward: EXP
Memento
Go to Midgard (Follow the arrow)
Quest Reward: EXP
Vikings and Avenging Angel
Have a conversation with [Frigg]
Viking Mage
Have a conversation with [Erdimien]
Quest Reward: EXP
Misunderstandings (2)
Have a conversation with [Frigg]
Misunderstandings (3)
Have a conversation with [Erdimien]
Field Research
Go to Midgard (Follow the arrow)
Quest Reward: EXP
A Familiar Mask
Hunt 15x [Strong Poisonous Hamster]
Hunt 15x [Red Jelly]
Hunt 15x [Strong Lava Golem]
Hunt 15x [Strong Fire Vampie]
Hunt 15x [Small Mimic]
To the desert
Go to Mortaz Desert Port (Follow the arrow)
Quest Reward: EXP
To the clue
Go to Port Surroundings (Follow the arrow)
Quest Reward: EXP
Survival of the fittest
Hunt 20x [Camp guard]
Hunt 25x [Melki's Patrol Samurai]
Hunt 30x [Keru's Patrol Hunter]
Hunt 30x [Garton's Patrol Bomber]
Quest Reward: EXP and 3k Reputation
Gathering Information
Hunt 10x [Neil's Key Master]
Hunt 10x [Melki's Jailer]
Hunt 10x [Garton's Jailer]
Hunt 10x [Keru's Jailer]
Quest Reward: EXP and 5k Reputation
ℹ️ Use the 
Warp system, the 
Wing of Return (Desert) and 
Amulet of Return to make this quest faster.
Once again
Have a conversation with [Harbour Guard Tom]
Clues (1)
Have a conversation with [President Noah]
Clues (2)
Hunt 10x [Dust Sand Scorpion]
Hunt 15x [Dust Sand Mantis]
Hunt 22x [Desert Sand Basilisk]
Hunt 25x [Desert Sand Prota]
Quest Reward: EXP and 3k Reputation
Clues (3)
Have a conversation with [President Noah]
Clues (4)
Hunt 20x [Desert Sand Predator]
Hunt 20x [Desert Sand Blade Horn]
Hunt 20x [Sandstorm]
Hunt 30x [Sand Spirt]
Quest Reward: EXP and 3k Reputation
Following the Clue
Have a conversation with [President Noah]
Clues (4)
Hunt 1x [Commander Neil]
Hunt 1x [Commander Melki]
Hunt 1x [Commander Keru]
Hunt 1x [Commander Garton]
Quest Reward: EXP and and 3k Reputation
Hide and Seek
Succesfully Complete 1x [Ibrahim] raid 
Quest Reward: EXP
Following the Clue
Have a conversation with [Utegarda]
Scout (2)
Have a conversation with [Scout]
Help to Make the Scout Clothing (2)
Deliver 3x [Common Leather] 
Deliver 3x [Common Rag] 
Deliver 3x [Hot Leather] 
Deliver 3x [Hot Fabric] 
Quest Reward: EXP
The Truth is Revealed
Have a conversation with [Erdimien]
Take Them Down!
Have a conversation with [Frigg]
The Rift
Have a conversation with [Frigg]
Quest Reward: EXP