Kid Charlemagne
I am the Very Model of a Modern Moderator
Determine degrees of success.
A great tracking roll will get them unnoticed right to the bad guy's lair. Say DC 20+
An OK roll (DC 10+) will get them there, but it might take longer than they'd hoped, meaning the assault will be tougher, the guards more prepared and vigilant, etc.
A poor roll (less than DC 10) gets them noticed, and possibly ambushed or misled. Followup must be done to find the lair - Gather Info, bribery, etc.
That's how I'd handle it.
A great tracking roll will get them unnoticed right to the bad guy's lair. Say DC 20+
An OK roll (DC 10+) will get them there, but it might take longer than they'd hoped, meaning the assault will be tougher, the guards more prepared and vigilant, etc.
A poor roll (less than DC 10) gets them noticed, and possibly ambushed or misled. Followup must be done to find the lair - Gather Info, bribery, etc.
That's how I'd handle it.