Sword Art Online Progressive, Vol. 7 (light novel)

The seventh layer of Aincrad-a massive casino where over half of the game's betatesters dropped out before launch. Kirito, too, lost everything in its Monster Arena backthen. When an informant named Argo seduces Kirito and Asuna with knowledge thatcould aid in their investigation, the pair soon plunge into the casino's dark underbellyonce more. Meanwhile, the Elf War Quest also reaches a sudden turning point when aflurry of crises rock the Dark Elves' home!