Not what you expected but.
I am not an electrician by trade and only work on mine as I know it then have it tested, but guess the light rose you've opened is also the junction box with loop out to next light.
A normal set up would be three cables. Power in, loop out to next light and the switch wire. So 3 brown [live], three Blue [Neutral] and 3 [ Earth] sleeved yellow/green =9 wires. What's your tenth wire?
In your case call an electrician...
NOTE: THE COLOUR CODE RELATES TO U.K ELECTRIC CABLE.
Bob, March 2009