Where a defendant raises special pleas, a plaintiff must file a replication to those special pleas. Failure to file a replication constitutes an admission that the special pleas are well-taken, and results in there being no triable issues for determination by the court. A replication to special pleas cannot be made through heads of argument, as heads of argument are points of law prepared by legal practitioners and not averments of the litigant. Special pleas, unlike exceptions, require the introduction of fresh facts from outside the pleadings which must be rebutted by evidence introduced through a replication. In the absence of a replication to a special plea, the issues raised in the special plea remain unchallenged and there are no disputes for determination.