Invisible Object Show Up In Final Render I am using Blender 2.79 I have an object that appears in the Cycles render that is not in the original scene. I have closed the file down and reloaded it. I checked everything in the outliner window looking for something. I am sure the object is a straggler as it was something I created before. I checked all the eye icons and they are all turned on. I tried to box select to see if I could snag the hidden item but nothing is selected. 

If I use the render in the display viewports mode the invisible object does not show up. It only appears in the main render window. Any help with this would be appreciated. Thanks
I finally figured this problem out. I keep moving objects around then would render to see if the invisible object would move with it. After about a half hour of moving objects around I found the one object that was attached to the invisible object. It must have come in when I appended an object to the scene.  This invisible object was attached to many objects joined together. Which one is the culprit attached to the invisible one is beyond me.  It would be very time consuming to separate them all so just deleted. This fixed the problem.  But this still does not explain why the object came in invisible when it was appended into the scene.