The letters are hidden in the images and are a slight shade unique or lighter from the colour from the part of the image that they are hidden in. Whenever you locate a letter you merely click on it together with the mouse icon and it'll reveal itself clearly and indicate on the bottom ideal corner of your game display in red color the list of alphabetical letters which have not however been located. It is not challenging to discover them all you may have to do is be patient and scan via the photo on section at a time and you'll obtain oneself spotting them a single by one.