Three hardcovers from the Tunnels series by Roderick Gordon and Brian Williams: Tunnels, Deeper, and Spiral, which are books 1, 2, and 5 of six. Will Burrows digs under London and finds an entire hidden civilization that does not want to be found. These are thick, chunky books with real heft, and the underground adventure angle pulls in kids who have aged out of lighter fantasy. Deaccessioned Carnegie Library consignment item, so expect library stamps, labels, and pockets along with typical reading wear. Note: Untested, as is, as seen, no guarantees. As a found vintage item, there may be wear, dust, and other callouts I miss. No cancellations. Keywords: tunnels series, roderick gordon, brian williams, deeper, spiral, chicken house, scholastic, subterranean, underground adventure, science fiction, middle grade, young adult, hardcover lot, ex library, series lot