Fantagraphics
Usagi Yojimbo #28
published May 1991
was Wind Over the Tombstones [Circles part 1] [Story on Interior Page(s)]
Usagi Yojimbo #30
published August 1991
was Shroud Over the Mountain [Circles part 3] [Story on Interior Page(s)]
Usagi Yojimbo #31
published November 1991
was Shroud Over the Mountain [Circles part 3 Conclusion] [Story on Interior Page(s)]
Usagi Yojimbo #31
published November 1991
was Closing the Circle [Circles part 4] [Story on Interior Page(s)]