Publisher's Synopsis
If we can access Hyperspace - the Fourth Dimension - it holds out unlimited travel possibilities: through time as well as space. In Barrier 346, Captain Keriot and his crew, aboard the XQ9, experience the enigmatic greyness of that mysterious realm beyond our three-dimensional cosmos. They face not only the weirdness of Hyperspace, but the threatening presence of a supremely advanced life-form, the Flargos, that lives there, and is pursuing the XQ9. Can any barrier protect them from the supremely intelligent Flargos? Can they ever escape from the Fourth Dimension and resume their normal lives aboard the XQ9 ?
