How to recover the treasure in the MP

chalkoutline · Jan 20, 2026

Yesterday, OI Sage explained the principle on how the diggers kept the shaft dry. For fun, i applied his theory to retrieving the treasure.

1. Drill a core sample that definitively locates the treasure.
2. Drop a casson on that location and hammer grab down to a point where the weight of the earth holds back the water from pushing up from the bottom.
3. Drop a second casson next to the first and hammer grab the earth to the same level.
4. Just above the remaining dirt, cut a hole in both cassons and install an air lock between them.
5. Place a specially designed air lock on top of both cassons. Send guys through the airlock into the casson above the treasure.
They continue to dig down to the treasure shuttling the through the horizontal airlock and into the second casson.
6. When the dirt in second casson gets too high, they seal all the airlocks in the treasure casson, remove the airlock on top of casson 2 and hammer grab it out.
7. Repeat until the treasure is reached.
8. Hoist the treasure above sea level and hold in place. Remove the airlock above the treasure and lift it out using a block and tackle attached to a tree nail (wood peg).

what do you think?
😂

Abse1998 · May 26, 2026

Interesting idea honestly. The twin caisson + airlock concept sounds theoretically possible, especially if the surrounding ground pressure could resist the water intrusion long enough for controlled excavation.

I think the biggest challenges would be maintaining structural stability between the caissons and preventing water seepage once horizontal connections are cut. The deeper they go, the more difficult pressure management and worker safety become.

The spoil removal system through the second caisson is clever though, since it separates excavation from the treasure shaft itself.

Of course, all of this assumes the treasure chamber actually exists and can be pinpointed accurately with a core sample first 😄