Abyss Lake

 is a deep lake that lies southwest of the small town of Hugel. Dangerous monsters reside around the lake as well as within the island in the midst of the lake itself.

In order to be teleported to the island in the middle of the lake, adventurers must bring the following items to insert into the magical column:
 * 1 Dragon Canine
 * 1 Dragon Scale
 * 1 Dragon Tail

Maps
Sourced from kRO Dungeon Maps

Patches

 * Patch (2019 Oct. 30)
 * Abyss Lake 4F - Destroy Normal Monster Equipment, Remove Acid Terror
 * Patch (2019 Aug. 07)
 * 3 new dungeons and new items will be added.
 * Patch (2007 Jan. 03)
 * Newly added background music for some floors of Thanatos Tower (3rd to 12th floors), Abyss Field, and Odin's Shrine.
 * Patch (2006 Dec. 05)
 * The background music of the following maps will be changed:
 * Abyss Lake: hu_fild05
 * Abyss Lake Underground Caves: abyss_01, abyss_02, abyss_03
 * Kiel Hyre Quest maps: kh_mansion, kh_school, kh_vila
 * Episode 10.3 (2005 Oct. 05)
 * Added Thanatos Tower and Abyss Lake.

アビスレイク