Trying to find a story

I am trying to find a story that I read years back.

It might have been by Bob Arnold, and his characters from Zapped! were involved in it to a small extent.

It was about a boy who was at a native American site (Possibly his mother was an archaeologist?) and ended up in a copper kettle used for special ceremonies, and was hit by lightening and he was transformed into a female. IIRC there was some evil men trying to grab the archaeological site for a resort of something. I just can't remember more.

It was a good read and I really want to read it again.

Is anyone able to help me find the story?

Thanks!