It's an interesting chapter but I thought Ehrman might have overstated his case in the last couple of paragraphs. He argues that the idea of a glorious hereafter for some souls (& eternal torment for others) is not found in the OT.
Ditto for the teachings of the historical Jesus.
Yes, this might be technically true but the historical Jesus had plenty to say about a final judgment and the need for repentance.
Ehrman writes, "To put it succinctly, the founder of Christianity' did not believe that the soul of a person who died would go to heaven or hell."
It's a bit of a miscall to name Jesus as the founder of Christianity', isn't it?
I am not sure what Jesus thought would happen prior to that final judgment.