. . "The answer also alleged: plaintiffs' claim was barred by res judicata by reason of judgment entered on December 19, 1984, in a prior action [Case I]; plaintiffs' claim is barred for the reason that the same was a compulsory counterclaim in [Case I], and the matter was not raised at that time; plaintiffs are the owners of Block Fifteen of the town of Climax Springs and [the Village] makes no c" . .