Tephra Cave

Tephra Cave is a region located in the right leg of the Bionis. It connects Colony 9 to the Bionis' Leg. Much of Tephra cave remains unreachable until the Mechonis Core events.

Ground Floor

 * Caterpile Nest
 * Escape Pod Bay
 * Forgotten Cave
 * Hidden Warehouse
 * Tephra Cavern
 * Warehouse 2

First Floor

 * Bone Corridor
 * Emergency Warehouse
 * Prayer Room
 * Soothsayer Crypt

Second Floor

 * Arachno Feeding Lair
 * Arachno Queen's Nest
 * Kneecap Hill
 * Path of Absolution
 * Trader's Stopover

Ground Floor

 * Mag Mel Ruins
 * Rear Entrance
 * Spring of Grief
 * Tephra Path

First Floor

 * Bafalgar Tomb
 * Vilia Lake

Second Floor

 * Heavenly Window

Third Floor

 * Leg Pass

NPCs

 * Shura (Post-Mechonis Core)

Normal Enemies

 * Air Vang
 * Arachno Pod
 * Arm Bunnit
 * Brabilam Vang
 * Cave Skeeter
 * Clap Bunniv
 * Cute Caterpile
 * Desert Krabble
 * Director Arachno
 * Dorsiar Lizard
 * Eater Caterpile
 * Falsel Bunniv
 * Falscia Bunniv
 * Femuny Wisp
 * Hanz Pod
 * Iron Bunniv
 * Jada Arachno
 * Jadals Arachno
 * Jewel Krabble
 * Medium Skeeter
 * Mell Lizard
 * Night Wisp
 * Noble Brog
 * Officer Arachno
 * Panasowa Arachno
 * Plane Bunnit
 * Prom Skeeter
 * Rhoen Quadwing
 * Singing Brog
 * Sonicia Gogol
 * Tephra Lizard
 * Vilae Arachno
 * Weather Flier
 * Willow Bunniv
 * Wind Vang
 * Worker Arachno
 * Young Brog

Quest Exclusive Enemies

 * Dazzling Tolosnia
 * Devoted Arachno
 * Dim Wisp
 * Firework Geldesia
 * Greedy Arachno
 * Lurker Brog
 * Lurker Krabble
 * Reckless Zanden
 * Resolute Arachno
 * Satisfied Gogol
 * Zealous Arachno

Story Exclusive Enemies

 * Captain Arachno
 * Soldier Arachno
 * Soldier Arachno
 * Soldier Arachno

Unique Monsters

 * Cellar Bugworm
 * Gluttonous Eugen
 * Judicious Bunnitzol
 * Mining Patrichev
 * Musical Vanflare
 * Plump Sprahda
 * Protective Torquidon
 * Reckless Galdon
 * Solid Konev
 * Wallslide Gwynry
 * Wallslide Gwynry

Bosses

 * Arachno Queen

Heart-to-Hearts

 * A Scene Revisited
 * Glowing in the Night
 * The Legend of the Spider