Greg Bear has added his praise, "Henry Gee stakes his claim to excellence with these startling, beautifully written tales of cosmic adventure. Brisk, funny, triumphant--and utterly compelling."
THE SIGIL was nominated for the British Science Fiction Association's Award for best novel, and a little birdie tells me it has been nominated for the Nebula Award as well.
Brenda Cooper posted a good review of it as well, recommending it, at:
http://www.brenda-cooper.com/2013/01...-by-henry-gee/