I have some wheels that are probably not worth $50 but they are so silky fast, I cant get rid of them. Sadly, Sunday, I was climbing a 3 mile stretch of mountain kept hearing, pop. Then, again.

When I got to the top, I dismounted and spun the back wheel over and found 4 spokes loose

Now, these wheels have about 15k on them but still. I removed the rim tape that night, pulled the tire off and the spoke at the threads have pulled out of the nipple.

Not sure which one pulled away from which but they seperated. They are older, black Mavic Flites. Id say they are 8-10 years old.

Any suggestions?
Thanks in advance.
Chris