I'm running Curse of the Crimson Throne (my first time DMing) and the party, while oddly made, is a good one. Fun group, play and RP well together. I'm having trouble with one aspect, however, and that is one player who is playing an occultist. He's a bit of a power gamer, but nothing too bad, and it's a great character. However, I am becoming irritated by Mind Eye. Basically, he'll cast see invisibility on himself, then send the Mind Eye whizzing around the whole dungeon. Now, for many dungeons, this isn't a problem. Who cares if he knows room X has 3 ogres, and room y has 1 ogre and a cave troll, or whatever. But often, really cool dungeons go down as follows:
What's in room A? [I read description]
What's in room B? [I read description]
What's in room C? [I read description, he rolls knowledge check on monster inside]
It becomes tedious, and kind of deflating. Like, what's the point of an interesting dungeon if I just read 20 room descriptions, then the party picks what monsters it wants to fight first. No dramatic reveals, no cool entrances. I ruled that it's too large to go through a keyhole or under a reasonably well-made door, which has helped, but some dungeons don't really work with slapping doors every 10 feet.
He's not breaking any rules, not at all. And he's certainly not being malicious. It's just becoming way less fun for me as a DM. It begins to feel like I'm just providing a list of monsters to fight at the beginning of each session. Or else I'm feeling really scummy and railroady by wanting to put shriekers everywhere, or giving every monster see invisibility.