johnsemlak said:
What skill best covers the availity to find a piece of information by consulting books, maps or a library? Gather Information refers to getting info from people, so it's rather different.
It depends on what you're trying to judge :
1. Will a PC find/confirm any piece of information in a given library ?
Give the library an equivalent Knowledge rank,
add character Int bonus,
add synergy bonus if the PC has 5+ ranks in the specific knowledge,
add synergy bonus if the PC has 5+ ranks in a related Profession (scribe, librarian…)
set the DC,
roll the d20.
2. For a book (or map), I'd go the other way round and have the book (or map) confer a circumstance bonus on the related knowledge check.
3. From a more realistic point of view about libraries, another method :
If PCs are trying to confirm a piece of information, their own skill is dominant, then the library gives a circumstance bonus to knowledge skill, no retry.
If the PCs are trying to discover a piece of information : give the library a equivalent Knowledge rank, set a DC, roll the d20, keep the result for yourself.
Determine a research period. You may use the DC here, such as :
DC 10 - one hour
DC 15 - half a day
DC 20 and higher - a day (8 hours)
Have the PC roll d20 + Int + appropriate synergy bonuses (5+ ranks in the specific knowledge area, useful profession, decipher script, search, you name it from the type of research or the organization of the library) + aid from others (PCs, librarians, sages…).
At the end of any given period, have the PC roll vs. the set DC. If he/she succeeds, he find the information or knows there's nothing to find. If not, retry is allowed (and thus taking 10 or 20).
The last method, though more complicated, doesn't let the PCs skill interfere with the content on the library. Only with what can be found/derived from that content.
Hope this helps.