On one hand, the bit with the scepter and the crowns is pretty straightforward. The silver end of the scepter goes with the silver crown. The gold end of the scepter goes with the gold crown. On the other hand, I don't see any clue, hint, riddle or other indication that a group of clever PC's could use to work this out. It seems like random guessing or divination magic is the order of the day. Have I missed something?
Nope, but for a TOH death-trap, it is pretty logical and straight forward. It is tough but fair.
When my group ran the dungeon:
Player: "I reach out with my stick and lift the crown off the throne."
DM: "The crown lifts from the seat, resting heavily on the end of your stick. So, does anyone wear the crown?"
Players: /unimpressed stare
DM: "Right."
/A few minutes of playing with the crown and scepter does not end with horrible death. Still... no one puts the crown on.
Player: "You say there's a symbol of the crown on the throne?"
DM: "A symbol of 'A' crown anyway. It's done in silver."
Player: "Still holding the crown on the end of my pole, I'm going to touch the crown to the symbol of the crown on the throne. Then I'm backing away. Quickly."
DM: "Where are the rest of you while he's doing this?"
Other Players: "Far away."
DM: "Hot, sudden death does not come to claim you... at this point. Touching the crown to the throne appears to not do anything."
Player: "Hmm... anyone want to sit on the throne?"
Other players: "No way in Hell."
Player: "Thought so. Describe the scepter again."
DM: /description
Player: "Hey... silver end? And the symbol on the throne is worked in...?"
DM: "Silver."
Players: "..."
Player A: "No way."
Player B: "Couldn't be that easy."
Player C: "Has to be a trap."
Player D: "I put the scepter down on a cloak, the silvered end sticking out beyond the edge of the cloak. Then I put the 10' pole beside the scepter. I wrap the cloak around the scepter and the pole, and tie it tight with a piece of rope. This way the scepter is tightly held with the silvered end out, but 10 feet away from us."
DM: "Okay."
Player: "Then we all back away. We all hide, and the fighter puts his shield up facing the throne, and I hunch behind it. Carefully reaching out with the pole, I touch the silver end to the symbol of the crown."
DM: "With a subtle groan, the throne... [pause as we all tense]... sinks into the floor, revealing a hidden passageway behind it."
Players: ".... it worked?"
DM: "Appears that way."
Players: "Son of a bitch. Silver to silver, that actually made sense."
DM: "Perhaps. So, who's going to wear the crown?"
Players: "NO ONE!"
DM: /sigh