Trash
Reason: What is the formula to determine tier from depth?
Reason: What kind of secret is an observation?
A pile of debris.
Piles of trash are practically ubiquitous throughout Qud. While of little monetary value on their own, they are extremely valuable in combination with the Scavenger and Trash Divining skills, which transform them into items and secrets, respectively. A single act of rifling through trash has the potential to yield both an item and a secret, if the rifler has the appropriate skills.[1]
The depth at which a given pile of trash first appears[2] determines what tier of items are likely to be found from rifling through it.[1] For more information about how the tier is calculated for a particular depth in a particular location, refer to the zone tier page.
Whenever a creature rifles trash while having the Scavenger skill, there is a 25% chance they will find an item. Roughly 96% of the time this happens, this item will be scrap randomly generated from the table of the appropriate tier. The other roughly 4% of the time it will instead be one of an assortment of items, again rolled based on tier. (The chance of scrap is actually larger than 96%, because the same table that provides the non-scrap items also has a possibility of yielding scrap.[3])
Whenever the player (and only the player) rifles while having Trash Divining, there is a 5% chance they learn a secret they did not already know. Possible secrets include sultan lore, observations, and locations.[4]