The burning isn't the hard part. Or at least, it isn't the part that presents the most challenge. When the fuse moves, I want it to leave a line-path in its wake, as that line (along with the others) will make an image. You can hide the tween-path. You can leave the tween-path. But can you reveal the tween-path as an object moves along it? That's what I'm trying to figure out..