need help looking for a spell or feat

[KnightHawke]

im trying to find a specific spell/ feat/ or trait that basically allows a spell caster to "spend a round or so concentrating- as their spellbook slowly fades into the astral/etheral plane' and vice versea . I cant recall where i saw it, or if it was Patfinder, or D20 or even jsut 3.0/3.5- but if anyone can rember this, or point me in the right direction i would be gratefull.
thanks you

[avr]

Maybe secluded grimoire?

[KnightHawke]

avr wrote:

Maybe secluded grimoire?

YES!1 thank you Avr,I do belive that is the one, my thanks !