Made in Abyss Wiki
Made in Abyss Wiki

The Depths' Third Layer: The Great Fault is the eighteenth chapter of the Made in Abyss manga series.


Riko and Reg descend through the 3rd layer, the Great Fault, which features a long, vertical shaft. The trip is made more dangerous by the Madokajack constantly seeking prey. Fortunately, there are plenty of Neritantan who make nests in holes along the shaft. Riko uses them as distractions to draw the predators away. Riko and Reg run into the very same Crimson Splitjaw that Reg saved Riko from previously. Reg recalls Ozen's warning: using the Incinerator causes Reg to fall asleep within ten minutes, and for two hours afterward, it is impossible to wake him up. This would leave Riko completely unprotected, so if Reg uses the Incinerator, he must make absolutely sure that he defeats the threat before him.

Riko recalls that the Crimson Splitjaw eats Relics, so she throws one of her Sun Spheres to distract it, allowing Reg to attack from below. He knocks the Crimson Splitjaw into the shaft, where it is attacked by several various airborne creatures.

Riko and Reg descend to the 4th layer, which consists of a series of platforms filled with hot water. As they travel, Reg becomes aware of something watching them, that also moves when they talk. He thinks it may be a Delver, but not a White Whistle, though he is concerned that he hasn't been able to locate it yet. Suddenly, an Orb Piercer appears behind them.

Character Appearances[]

Bestiary Indexing[]


  • The Crimson Splitjaw that Reg scared off in Chapter 001 returns. Riko theorizes that it followed their scent.



  • Riko and Reg reach the 3rd layer, and defeat the Crimson Splitjaw for the second time.
  • Riko and Reg reach the 4th layer.

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Chapters and Volumes
Volume 1 12345678
Volume 2 910111213141516
Volume 3 1718192021222324
Volume 4 2526272829303132
Volume 5 333435363738
Volume 6 Extra 139404142Extra 2Extra 3
Volume 7 4344454647
Volume 8 48495051
Volume 9 52535455
Volume 10 5657585960
Other Chapters 61