It's really not as scary as the cover would have you believe. I had never heard of this series before I ran across it in the library last year. This was a Christmas gift for Z, but she and M both love it. My favorite part? The fabulous vocabulary. Even I had to look up posset. It brings to mind The Secret Garden (same period), and has really very little about wolves after the first few chapters.
*(As for the new audiobook series that we like, it wasn't the greatest after all. But we did find a third installment about the Bastable children that we highly recommend.)