"Ah, fair enough," the woman said as she continued her search.  After some time, she turned back to Mareth, shaking her head.  "Unfortunately, it's not where I thought it was," she apologized.  "I can try to track it down for you, see if it may have been moved somewhere.  If not, I've got a rather large spellbook collection, at least for the basic spells.  Anyone's free to come in and copy spells out of them for their own books, so you could start a new one," she said to Infernia.  Turning back to Mareth, she added, "I don't have any errands to run, but thank you for asking.  I would, however, like to ask a favor of you.  Some of my students are interested in learning alchemy, at least the basics, but I'm not experienced in the art at all.  If you don't mind, would you be able to come and help out a bit?"