Test how attentive you are to detail in this game of finding the difference between pictures. In Witches and Spies you will have only a certain amount of time to find something that differs between two pictures. Some things are obvious while some are much more subtle and will require a lot of attention to every part of each picture. Don't let the timer run out and don't just 'click' on the page in hopes of accidentally finding it. Go ahead and give it a try - you'll be amazed at how addictive it really is.