Rumiko Takahashi

"This volume locked in battle with Ry*okotsusei - the same demon responsible for his father's death - Inu-Yasha may have a chance at victory... but not if he can't master the "Backlash Wave" (Bakuryu-ha). Meanwhile, when Kagome is bitten by Tsubakai's familiar, the Shikon Jewel shards themselves are affected. What can it mean for the shards to turn black...?"--P. [4] of cover.

"Sessho-Maru's quest to gain a new blade from an evil swordsmith has backfires-the vengeful soul of Goshinki, another of Naraku's demonic "offspring, " lives on in the blade. Can Inu-Yasha with his newly restored Tetsusaiga take on this new evil sword. Or will he have to learn how to better use the power of his father's great fang?"--Cover p. [4].

On the surface, Muso seems to be just another incarnation of Naraku and he also seems to be impervious to Naraku's will. Who is he and what is his connection to Inu-Yasha and Kikyo? Then, Inu-Yasha and company go looking for a way to make Tetsusaiga more powerful.

"Inuyasha dreams of the day half a century ago when Kikyo, the priestess he once loved and unknowingly betrayed, perished. Then, Kagome is forced to watch a vision of the moment the two parted ways. Now the living Kikyo is in desperate danger, and only Kagome can save her!" -- from publisher's web page.

Entrenched in the battle of their lives against the undead Band of Seven, Inuyasha and friends get some unlikely allies when his brother Sesshmoaru and Koga get caught up in the skirmish. At the climax of the bloody battle, another of Naraku's malevolent plots is revealed.