"I thought someone at the temple would probably know where I might be able to find some ritual books, if they existed -- either for sale or in the hands of somoene who would let me copy them -- in this town. I ran into a problem that might be solveable with a detect secret doors ritual; it's a fairly common ritual, but I've usually had the privlidge of the company of someone skilled in spotting such things without magic so I never bought a book of it for myself." She explained.