What you need to know:

Adventures Underground accepts trade of gently used products in exchange for in-store credit. Trade can be dropped off with an associate at the front counter any time during store hours. Normally, we process trades within 3-5 business days, but it can take up to a week depending on current business demands. We will contact you via text or phone (you may specify which you prefer) to let you know how much credit you have been given. Once you have been notified of your credit, it is ready and available to be applied towards your purchases.

Payment is offered as store credit only (see below for information on store credit).

You will likely receive more credit for recently released books (<10 years old) within our desired categories in “like new” condition than older books or books in rougher condition. No book is guaranteed to receive an offer; trade offers will be at our discretion based on our stock and demand for that title.
We are currently most interested in the following categories (categories are subject to change as stock changes):

Science Fiction and Fantasy
General Fiction and Classics
Horror
Romance
Mystery
Pop Culture
Mysticism and Occult / Metaphysics and New Age

We do not accept ex-library books or magazines in trade.

Using Store Credit: 50% of the pre-tax total of any sale may be paid by store credit. (The rest must be some variation of "real" money.) Please be aware that store credit is not accepted at the Caterpillar Café.