Area Conquest: Etherain Sewers

Area Conquest Forest of Beasts Etherain Sewers Frozen Palace Valley of the Dragonkin Aiort Graveyard Helron's Castle

AC Treasure (5%)

Collect the 8 pieces of the Treasure Map to get the Treasure Box
Collect the 5 pieces of the Beast's Key and craft the Beast Key
Use the Treasure Map and the Key to find and unlock the Treasure Box

(8) Treasure Map of Darkness (+0.25% each, +2% total)
(5) Darkness Key (+0.4% each, +2.0% total)
(1) Treasure Box (1% total)

east-sewer-of-maze-treasure-box.jpg etherain-sewers-box.jpg

Hunting (38%)

Captains are found at camps and in missions

Mob Kills Each Total Location Spawn Time
Captain 500 +0.016% 8.0% Fields, Missions
L35 Dark Knight 10 +0.7% 7.0% Incomplete Memorial, orange zone 1 hour
L45 Death Sorcerer 10 +0.7% 7.0% West Sewer of Maze, orange zone 45 minutes
L33 Lucky Contaminated Mouse 10 +0.4% 4.0% West and East Sewer of Maze, multiple spawns 1 hour 30 minutes
L44 Lucky Contaminated Spider 10 +0.7% 7.0% Incomplete Memorial, multiple spawns 1 hour 30 minutes
L39 Captain Dark Nacrat 20 0.25% 5.0% East Sewer of Maze, multiple spawns 30 minutes

*If you fail to kill the Lucky within the allotted time limit it will respawn in a new random location in 10 minutes

Collection (20%)

AC items are random drops off ANY mob
Right-click on the item to add it to your AC Collection

Qty AC Item Each Total
20 Sewer Relic +0.075% 1.5%
10 Sewer Cogwheel +0.20% 2.0%
10 Ignis's Second Order +0.50% 5.0%
10 Spirit of the Dead +0.25% 2.5%
10 Etherain's Corruption +0.35% 3.5%
10 Conspiracy Memo +0.55% 5.5%

Mission (37%)

Complete the Main Quest
Complete the missions 15 or 30 times each

Qty Mission Each Total
30 Main Quest +0.33% 10.0%
20 Tower of Ruins - Trial of Water +0.5% 10%
30 M4 Etherain Sewer +0.2667% 8.0%
15 M1 Hidden Passage +0.20% 3.0%
15 M2 Access Road to Etherain +0.20% 3.0%
15 M3 Grave of the Siege Knights +0.20% 3.0%

Rewards

AC Complete Heim Items
10% 14,700 10 Rejuvenation Pots
20% 26,900 L2 Berserk Pot x10
L2 Awakening Pot x10
L2 Dash Pot x10
30% 46,300 Over Stone x3
Shining Crystal x3
40% 77,700 Lucky Coin x5
Sell for 50,000 each/250,000 total
50% 125,900 L3 Mayan Jewel x10
L3 Mayan Metal x10
60% 195,700 O'Neil's Ring: Level 25, Skill Damage +20%, All Stats +5
O'Neil's Necklace: Level 25, Max HP +400, All Stats +5
70% 291,900 Orharcorn x2
80% 419,300 Stat Point Up
90% 582,700 Jewel of Akura
100% 786,900 Corrupted Spider (Pet)
Unique Bonus: Probability of multiple attacks +6% (Small range)
60%: +2 attack speed
100%: +2 attack speed, +1 Lucky Monster damage

Credits & Sources

http://sunonline.webzen.com/GameGuide/?nfc=2&nsc=4&ndc=4 for Rewards
http://tringel.com/tips-guides/62-complete-guide-area-conquest-2-a.html for Hunting, Heim and Pet info

Area Conquest Forest of Beasts Etherain Sewers Frozen Palace Valley of the Dragonkin Aiort Graveyard Helron's Castle