Invisible Jockey

I saw a spider jockey 10 blocks from my position and decided to attack it, but when I killed the spider first, the skelleton disappeared but it kept shooting arrows at me. I tried running to avoid the invisible danger, but a few seconds later the invisible menace continued shooting arrows from anywhere, so I swung my sword repeatly without knowing where it was until I hit it to dead. I hope this helps you. Thanks for reading it, keep up the good work.