A battling Cobblers display saw them rediscover their goal touch with strikes from Carlisle and O'Donovan although they were twice pegged back by their promotion-chasing hosts in front of 12,496.
Automatic promotion hopes are now over for Town but they can turn their attentions to the play-offs and a potential date at Wembley.
More to come on Cobblers Mad.
Source: Cobblers Mad
Source: FOOTYMAD