Novel mechanics like the storm are awesome to see for Shadowdark! In a way it's a lot like framing the random encounters of a typical dungeon to an outside space and that just makes all kinds of sense in a system that dispenses with overly complicated systems.
I am not specifically a dino kid, current or former, but this and their sentience might have converted me.
All in all a very tidy little point crawl that could easily evolve into a mini hexcrawl if you were to develop just a few more pages. Very fun stuff!
My final thought is that with the exception of the 4 spell scrolls bringing the average for loot up this is maybe just a little stingy on loot, totaling maybe 10xp depending on your reading of the rewards. This is of course a very personal design choice.