Edward O' Toole (born April 19, 1974) is a published author who is probably best known for his book Sophia Bestiae, The Wisdom of the Beast (ISBN 1591460751) and its follow-up The Grimore Bestiae. Among his other published books are Clavis, The Grimore Bestiae, and The Carpathian Ghost Hunter. O'Toole has also been featured in several magazine articles, as well as being interviewed on television.[citation needed]