I couldn't remember if 'low' poetry was used; I certainly remember the children throwing 'high' poetry around in the trilogy, but have blanked on anything lesser. Time for me to reread, apparently!

The ease with which characters quote in all your works is one of the things I love about them. I thought I was an unusual teenager, but reading The Secret Country books when they were originally released restored my faith in humanity. And I suspect Tam Lin was one of the reasons I went into liberal arts.