But I did a total improv on Saturday night. When one of my players asked to look for a secret door in the room with the crystal statues (that tried to kill them) there wasn't one on the map. But once they asked for it, I saw the need for it, so I moved some stuff around and moved a room to be the secret room.
Horrible horrible GM Fiat, I know. Or maybe great GM Fiat, as it almost resulted in a potential TPK where the mage and the 1st level cleric had to save the day by dispatching the ghoul / ghast creature. So it actually played out in a most awesome manner. The thing is, last minute improves like this can also backfire, so I don't plan on making a habit of it.
Now, if I hadn't been reworking stuff at the last minute I may have arranged things differently (and placed a secret door / room there in the first place) but one works with what one has - or doesn't have ;)
The Minotaur for Old-School Essentials
*Requirements:* Minimum STR 9, Minimum CON 9
*Prime Requisite:* STR and CON
*Hit Dice:* 1d10
*Maximum Level:* 8
*Armor:* Leather, including shield...