D&D 5E Better Lock and Secret Door Descriptions

MNblockhead

A Title Much Cooler Than Anything on the Old Site
I was recently inspired by an excellent video by Lindeybeige that described an ancient door lock technique and locked chest he created using that technique for a LARP challenge he created.

https://www.youtube.com/watch?v=hWCU2aF1TL0

It is a longish video, but I encourage watching it. It inspired me to do two things for my games.

(1) Come up with better descriptions for secret doors and locks.

(2) Stop assuming that thieves tools are a panacea for all locks.


For #1, there are a number of threads where people discuss this, but I could always use more. I'm especially interested in detailed descriptions that have thought through the mechanisms. I'm thinking of something like the Grimtooth trap books, but for locks and secret doors. Also, I'm interested in actual historical examples. I've never come across a lock like the one Lindeybeige describes in any of the gaming lists and threads I've read, even though these kinds of locks were apparently fairly common in Greek and Roman times.

For #2, it Lindeybeige makes an interesting point of how this lock poses a challenge for modern people with access to better tools. The technology is so old and unused that it is lost to all but for a few historians and enthusiasts. Why do we assume that someone proficient with thieves tools is going to be able to use them on locks in even the most ancient of dungeons. You can argue that the rogue would have some knowledge of these old locks, but wouldn't it be fun to occasionally have locks that require a bit more work and time to figure out. Maybe the investigation check on the lock indicates that the thieves tools are not going to help. You need a create a small tube with a notch and some cord -- something someone with proficiency with tinkers tools would be especially able to help with.

I wouldn't do this often. But on rare occasion, it is nice to throw in something more challenging. Of course, after the party figures it out, it is assumed that the rogue as some needed items to his thieves tools, so next time it is a normal lock-picking situation. I helps build up the sense of progression and experience.

So please share you (1) detailed descriptions of different locks and secret doors and (2) examples of special skill challenges beyond the routine lock-picking.
 

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Interesting story of a teacher of mechanical engineering who discovered a secret passage in an 8th century abbey and used it to steal books for two years before the Abbey and police eventually discovered the secret passage and caught the theif.

https://www.telegraph.co.uk/news/wo...used-to-strip-French-abbey-of-rare-books.html

https://www.atlasobscura.com/places/secret-passages-of-mont-sainte-odile

Nice description of a secret door, even if it is just of the old behind-the-bookcase variety:

Only when a a local gendarme put his weight against the wall behind a bookcase did a section swing smoothly back to reveal a small room in which a rope ladder gave access to the roof space above.

From there, a narrow corridor led to a workshop in another wing of the monastery that had been turned into a hotel for tourists and pilgrims. "The library was once the chapter room of the nuns in the convent here," said Fr Alain, tapping on the wall beside the secret entrance. "Maybe the passageway was installed so that someone could spy on them."
 


One interesting location for a secret door is within a set of stairs. Basically you lift up a step on a staircase to reveal a secret room or passage. Inspired by a real-life example of a "priest hole" being accessed in this way.

Picture from Wikipedia:

Staircase_with_a_Priest_Hole_In_Havrington_Hall-Worcestershire-UK-1.jpg
 

Found an interesting digital book on DMs Guild: Deadly Dungeon Doors by Glen Cooper (https://www.dmsguild.com/product/203610/Deadly-Dungeon-Doors)

There are some new rules you can try that add to those in the DMG and Xanathar's. There are a large number of tables that help you generate different kinds of doors and a flow chart to tie them all together. I find it a bit cumbersome to use on the fly and even in dungeon prep, but I do find the descriptions and illustrations to be useful. I especially like the Appendix on "Legendary Dungeon Doors". Each door is given a full-page treatment, including an illustration, stats, and description. There are 17 pages of these doors.

I also like "The Trap Check List" which goes over the trap discovery and disarming process and equipment list.

Personally, I would find a large list of descriptions of locked and secret doors to be more useful then random generation tables. But for USD 1.95 this is an amazingly good deal. The 17 pages of legendary doors itself is worth more than that.
 

Excellent Web site with drawing and descriptions of locks throughout history:

https://www.historicallocks.com/

I especially like the section on ancient pin tumbler locks, where the key actually move the bar on a barred door. I've been conditioned to think of dungeon doors as either locked or barred, never considering that a barred door could be unbarred from the other side of the door using a primitive tumbler design.

https://www.historicallocks.com/en/site/h/other-locks/locks-of-wood-and-iron/pin-tumbler-locks/
 

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