If Christ is the end of the law, what about the Ten Commandments?

There's a new post over at Ragged Glory. In an earlier post on the symbolism of the stone table in the Chronicles of Narnia, I talked about Christ as the end of the law. The follow-up post was written in response to a provocative comment:

I don't know what it would mean to say that the law was abolished. Which law was it that was abolished, and why? You implied that it might symbolize the Ten Commandments being abolished. But let's be real—which of the Ten Commandments are no longer in force?

I've spent the better part of two days grappling with an adequate response to that question!