Ambleside Online is "a free curriculum designed to be as close as possible to the curriculum that Charlotte Mason used in her own PNEU schools. Our goal is to be true to Charlotte Mason's high literary standards. Ambleside Online uses the highest quality books and costs no more than the cost of texts. The curriculum uses as many free online books as possible, and there is no cost to use this information or join the support group."
All resources for this curriculum can be borrowed from the library at no cost https://www.amblesideonline.org/