On the staircases, nothing is certain. Which way is up; which way is down; what is real, or what isn't. Everything is left open to interpretation. And interpretation is what Ives is best at. Doesn't hurt with her line of work, either. The thrilling sequel to Edge centers around Ives -- a logical, apathetic dancer who watches people on their sojourns up a dark staircase and must decide, on her side of the barrier, who to trust and what's real. Should she give up the only human connection she has to trust in a distant, vague voice? Readers should be aware that Encase contains mature elements and dark themes.