Readers, please enjoy this guest blog post by Morpheus Ravenna, author of the new Magic of the Otherworld. When I'm asked my favorite magical tool, my answer is something you can't buy in most occult stores. One of my most treasured allies is a hagstone. Hagstones, also sometimes called witch-stones, mare-stanes, or holy stones, are stones with a naturally-occurring hole worn through them, often found on beaches or in streams. The hagstone’s magic derives from the hollow, which acts as a little passage between worlds. It's like carrying a door to the Otherworld in your pocket, but one you have some ability to control. Here are five ways a hagstone can help your magical