content: I was excited to have the Earth's Children series available for my Kindle, but the OCR errors in "Shelters of Stone" make it almost unreadable. Surely SOMEONE must review the copy before the book is made available for sale? The quality of the story notwithstanding (the plot rather drags, as others have noted), it's incredibly distracting to come across so many mistakes in the text when trying to read the story. Publishers need to institute better quality control when issuing Kindle editions of old manuscripts.