Jay Lake can certainly come up with an interesting premise... -- Steve Sawicki, SFRevu
If you've been hankering for the kind of sweeping high adventure that absorbs you wholly in a time and place that never was, Mainspring is just the key to wind you up. -- Thomas M. Wagner, SFReviews.net
Lake has already proved to be an exceptional writer of short fiction, and this first novel promises to be the first of many fascinatingly idiosyncratic works. -- Don D'Ammassa, Critical Mass