Wool by Hugh Howey My rating: 4.5 / 5 Wool was originally published as a standalone short story, but fans insisted on more. It was then kept up as a serial novel, with short installments over time. Parts 1-5 comprise the Silo Saga, and 6-8 make up the Shift Trilogy. The final installment, Dust, is currently being written. … Continue reading book review: Wool #1-8