The attackers whose crossbow assault kills Mistress Henspar despite Volteeg's desperate attempt to protect her.
After the pet biscuit and race change expand Volteeg's awareness, he stands over Mistress Henspar screaming and trying to defend her from scags. A crossbow bolt shatters the person he loves, and she dies on the seventh floor.
The failure becomes the central guilt driving Volteeg's rage, shame, and eventual suicide attack.
The chapter names the attackers but does not describe their bodies or equipment beyond a lethal crossbow.
The scags cause the loss that defines Volteeg's remaining life.