Came out of work and found that my front brakes have been messed with and no longer work.I've tried to put them back, but it seems that the thin bit of cable that the other side of the brake latches onto is too small and too far for it to reach.
I also found that, hanging out of the front brake lever, there is a weird thin cable with a circle on the end, and it's dangling out of the lever joint. I assume it's the same cable as what I mentioned earlier, as tugging it seemed to move it. But this means the lever does nothing. Has no effect. What should I do? How can I fix this?