Inspect both of the doors as best as I can tell from the enterance. Try to widen the holes out a bit more.
Assuming that you're talking about the North-Eastern Entrance... [13] You spot nothing suspicious. Assuming that you're talking about the North-Western Entrance... Eh.
Widening the holes until they're large enough for a person to walk through comfortably will take several people with shovels several hours to do so. You could probably convince the people of Badend to do so if you thought it was important.
I could just just shoot a fireball up to the cobwebs then open up the doors with telekinesis in the northwest entrance.
Gedric, accompanied by Kadzar and Midna, enters the North-Western Entrance and prepares a fireball.
[10] As this is (kinda) D&D, the fireball is more of an expanding sphere of flame than an explosion, so it gives off a rather unimpressive 'flump' as it burns off the cobwebs. To everyone's relief the ceiling of the corridor seems to be a plain, if rather shoddy, stone roof with no horrible monsters ready to kill everyone.
Kadzar moves towards the door at the far end of the corridor while Midna looks fretfully on and Gedric steps forward, ready to cast his telekinesis spell.
[11] The spell goes off without a hitch, and the doors at the far end of the hallway open up into a blank wall.
...
If Acererak had a sense of humour he'd put 'Surprise!' on the blank wall, for you're certainly surprised when the ceiling collapses in a jumble of poorly-fitted stones.
[REFLEX: 16] Kadzar quickly jumps against the wall of the hallway, avoiding most of the falling rocks. 1 damage
[REFLEX: 1] Gedric is not so lucky. 2 damage
Gedric has been struck down!
Midna manages to escape without a scratch, as the first ten feet of the ceiling did not collapse.
The dust quickly settles, revealing a dishevelled Kadzar and a very dead Gedric.
Name: Kadzar
Gender: Male
Class: Battlechef (Fighter)
HP: 2/3
Weapons: Large Kitchen Knife, Pan Lid
Armour: Plate Apron
Items: iron pan, fork, sack of flour, jug of cooking oil, cord of firewood, flint and steel
Name: Tybar Whurthic
Gender: Male
Class: Fighter
HP: 3/3
Items: mining equipment, waterskins (water), rations, torch
Name: Midna
Gender: Female
Class: Ranger (Fighter)
Race: Dwarf
HP: 3/3
Weapons: Brace of Handaxes, Round Metal Shield
Armour: Ringmail, Saffron-Yellow Cloak
Items: Trained Raven (Rupert), Rope with Grappling Hook (50ft), Climbing Kit, Flint/Steel, Torches, Wineskin (Strong Brandy)
Name: Redd T. Shir
Gender: Female
Class: Rogue
HP: 2/2
Weapons: Rapier/Crossbow (30 bolts)
Armour: Leather Armour
Items: Rations for 2 weeks, torch
Name: Kazard McDermeth
Gender: Male
Class: Rogue
HP: 2/2
Weapons: Short Sword/Crossbow (30 bolts)
Armour: Studded Leather
Items: Rope, Pouch of chalk sticks, 10 foot pole, lockpicks
Name: Generic Nameless Hooded Stranger
Gender: Male
Class: Rogue
HP: 2/2
Weapons: Short Sword/Crossbow (30 bolts)
Items: Lockpicks, Rations, Rope, Ten-Foot Pole
Name: Urist Mcderm
Gender: male
Class: mage
HP: 1/1
Weapons: Sacrificial Dagger/Wizards Staff (20 charges)
Armour: Robe and Hat
Spells: Detect Magic, Heal, Dispel, Lightning Bolt, Fire Wall
Items: spellbook of summoning, 1 week of food and bedroll