It seems obvious that is has something to do with the bottles on the shelves behind the safe. I don't know if it's due to my brightness configuration (perhaps too dark), but I wasn't able to see anything over there, or to find any item in the bottles… So where is the combination ?
How to find Jelly’s share safe combination
dishonored
Related Solutions
It's rather easy; hold down the throw button (default right-mouse on PC) before throwing it. Dishonored provides you a neat little UI indicator telling you how long you have until it blows. Hold it as long as you need, then throw. Do make sure to leave enough time for the grenade to get where it's going.
It doesn't. Here is proof from my recent stealthy, super-lethal playthrough of 'House of Pleasure' mission stats (With no Shadow Kill. Notice that there are 12 bodies found, but 'Ghost' is checked):
Basically, as long as no red 'marker' appears on an NPC or a wolfhound (dog), it won't count as detected. Three white 'markers' won't count as detected. The red marker appears only if an NPC or wolfhound has detected you, not a body you killed or made unconscious.
Also, here are some reports from other posts:
Bodies found does not void the achievements Ghost, Clean hands or Shadow. Completed all three achievements yesterday and I have had missions where bodies were found.
Best Answer
The code you're looking for is behind the bottles.