Well, the way I see it, it would take quite an enemy to get through the entire dungeon to face Krunsh and Atelia and still be in good enough condition to seriously take them on.  Even more so once we finish the new rooms in back, such that several incredibly hazardous detours will exist before running across the two of them.<br/><br/>And if an enemy wisely recognizes this fact and flees, the Duo of Destruction has a whole day ahead of them in which to recruit new creatures to fill the gaps left by casualties.<br/><br/>The really tricky part will be keeping the traps tough enough and the monsters well-placed enough that even a well-balanced and intelligent party won't be able to walk through unscathed.