Last nights my players continued on their off topic exploration of local deserted mines.
Mine Two - The Mines of Madness. They got slammed by a bunch of traps but found lots of magical treasure. Eventually decided that they weren't going to find what they were looking for without getting killed and moved on. They now have a goblin companion that they rescued from the mine (Hug Hug is his name).
Mine Three - This one is from the module 'Ghosts of Dragonspear Castle'. They arrived at the mine entrance, saw that it was an old dwarven secret entrance where the secret door had been removed from it's mechanism and saw the Orc/Dworc wrestling match going on. Eventually they met with the Orc and Dworcs, where they found that the upper levels from their home had been taken over by members of the Emerald Claw. They decided that this had nothing to do with them and moved on.
Mine Four - Deserted and collapsed not far in.
Mine Five - after a journey of several hours down the mine tunnel it linked to a well carved dwarven tunnel and a door. Through the door was a room with 5 ogres camped. They were obviously set up as guards, but were defeated fairly swiftly. This is the Southwest corner of the Temple of Earth.
I wanted to get them back on track, but not so swiftly it felt like railroading. As such, there were many opportunities for the characters to go further off the rails if they wanted, but I had decided the last mine would be a back entrance to the temple, through which the cultists had come to set off the destruction orb in the nearby town.
I decided a while ago not to worry about the total mismatch between above ground distances and underground distances in this module. If any of the players notice and question it I will just say something worryingly vague - "Yes, that does seem unusual doesn't it?".
But we are back on track. I'm not sure if the players realise it yet.