" ... Thirteen Years Later " received mixed reviews from critics . The A.V. Club 's Todd VanDerWerff rated the episode a " B " . VanDerWerff felt that the episode 's comedic slant was necessary within the wider series , as he considered Millennium 's dark tone to be prone to unintentional comedy and that a comic episode provided an outlet for this . VanDerWerff found the script to be at its strongest when satirizing the character of Frank Black , but admitted that it " falls apart " when attempting to send up other subjects ; he also felt that the guest appearance by Kiss felt unnecessary and contrived . Robert Shearman and Lars Pearson , in their book Wanting to Believe : A Critical Guide to The X @-@ Files , Millennium & The Lone Gunmen , rated " ... Thirteen Years Later " one star out of five . Shearman felt that the episode had the potential to be much better , but that " the whole concept drowns in overkill " . He considered the episode 's characters to too shallow and its commentary to be too heavy @-@ handed to fully execute anything meaningful ; criticism was also levelled at the guest roles by the members of Kiss .