Tenebrous Depths give item

[Âme Prof]

In my pathfinder kingmaker game I went to conquer the second part of Tenebrous Depths and I discovered that in several places secret walls hadn't awakened me, so I went to check what was behind them and there I discovered that this quest is hell!
I think it's ridiculous to be able to miss everything on luck, and given that I can't reload a save of several dozen hours, I wonder if it's possible to give the items I'm missing, like Shield of the Weary Traveler for example, that would be really cool.

[forkofspite]

Since you can't go back to check a level, sound like you are playing the standalone version. If that's the case, there aren't any "quest items" locked behind secret doors. There can certainly be loot, but the minor quest items are random drops from normal encounters, and the major quest item drops are from the named bosses (and only if you've already found the four minor quest items for that boss).

There can be more rooms/encounters behind secret doors, so I guess it's possible you might miss a minor quest item, but you can only get a couple each run anyway, so just hope for better luck in the next run.

If you are playing the main story incorporation, you can go back to old levels (use the stairs rather than the portals). There is one minor story item on each level (including the level that has the named boss). The major quest item from each boss only drops if you found all four minor items, so taking a wrong turn on Level 4 (or 8, 12, 16), can lock you out of the "true ending". You can still get an ending though.

[Radiac]

Assuming you're playing the regular game, I recommend giving everyone in the party full ranks in Perception at every level, or as many as you can. Perception is the one skill that it pays to have on everyone. Here's the math:

If you have one Perception skill expert, chances are that person will need at least a 2 on a 1d20 roll to detect a secret door. It IS possible there will be some Perception checks that they cannot fail, but this is Pathfinder, you have to assume there will be a lot of harder Perception checks, and that the really good stuff will be harder to find. So we assume the Perception Expert has at best a 1/20 chance to fail on a Perception check. That's a 5% chance of missing a secret door, and we have to assume this applies to every secret door, treasure cache, and trap in the whole game, basically. So if we just have one Perception expert, we will fail to find 5% of hidden things, generally. There must be over 1000 hidden things, I would guess, so you're missing like 50 things.

One the other hand, what if we had 6 people in the party, and all of them had SOME Perception skill, such that they needed an 11 or better to find the average hidden thing. This gives us 6 Perception guys, each with a 50% chance to fail the check. But they each get a separate roll to find things, so this gives us more chances to succeed actually. So we only fail to find a secret door if all six people FAIL. As long as ONE of them succeeds, we see the door. The odds of 6 people all failing on a 50% check are 0.5 to the sixth power, or 0.0156. That amounts to a team failure chance of 1.56%, which is a LOT better than 5%. If some of your party members are better than others, the odds of failure go down from there, and if you have more Perception checkers it get's even better for us. If you have an animal companion, the animal gets to make Perception checks, and if you bring Ekundayo and his dog, that's another one.

[Âme Prof]

I wanted to see the true ending but I'll have to settle for the classic ending, too bad.
I'm going to max perception for my next game on pathfinder wrath of the righteous, it's my first game on a pathfinder and I didn't know it was so essential.
It's a shame about this quest though, I think it's so stupid that you can miss the real ending if you don't take specific actions without any clues.

[Včelí medvídek]

Btw failed perception check can be repeated if you level up.

But ye, in standalone DLC you can not go back - that said it is unlikely you do true ending in first go anyway.