[Not sure the issue, we are almost on same page. 
slight difference on being able to "see clearly" through the racks of dusty green bottles and a zone of C. Light and darkness.
Slight difference on area of effect of cone being able to totally "fill" the space. *The Wand of Freezing is a Cone of Cold , doesnt make ice itself (probably would freeze existing water), or bend around corners, or float, or seep. (But I do assume Narrhil waves the wand around as much as the opening will allow for maximum coverage)

As to the other concerns:
-It's Nightfall, the wandering monsters are staying in bed.
-The hounds are not at the church on a whim.
-And they probably will perish if they bother with Narrhil much longer.]


There is silence in the crawlspace.
The Worm watches the hole.




 

Here's how I saw it play out:

"Narrhil prepare, wand in one hand, battle axe in other. If the wand does not work, he will quickly try to stop any hell hound's attack, that squeezes through the opening, by shoving the axe-blade into its face.

Narrhil releases a charge of the wand into the cellar, hoping it not a dud..."

NARRHIL blasts the wand first thing, right away, nothing about seeing hounds.

I draw a picture of the room  10 x 20, the crawl space is 2x2 x5 ' long. (the 2'  does looks thinner than it should)(overall scale is not perfect but not too far off.)

I say you can really only see a bunch of bottles on the shelf -  blocking the view into the room.

All you can really see is the bottom shelf of dusty green bottles.

NArrhill says he will use the wand anyway.

IT fires= making a cone of cold air from a point at Narrhil's hands to the far wall of the cellar which just happens to be 30 feet away from where Narrhill is crouched.

All noises the hounds were making stop.

Round 2 starts.

[color=#000000]Narrhil waits, patently, wand ready, glad it had worked,
Narrhil part turns, trying to look two ways at once, he watches the worm for any signs of it becoming agitated, and readies once more.

As soon as the demon dogs are noticeable, Narrhil will shoot the wand down the crawl-space.

Fireball and Wand go off.
Fire rips across Narhill, Cold rips into the crawlspace....

here we are.

round 3. 


--the crawlspace is 2x2x5 ft long. the opening is on the floor so you have to crouch to get or look inside it.  There is a block of stone that was attached to some sort of metal mechanism allowing its ease of movement within the crawlspace, it is currently off to the side of the opening.

If narrhil moves away from his crouched position in front of the 2x2 opening, he will no longer have an angle to see do