On (Adam Roberts)

An interesting premise, but lacking in any conclusion despite hints there might be more to discover

I really liked this though for some reason was left slightly unsatisfied. I loved the slow build up to the discovery (as far as the reader's concerned) of the nature of the Worldwall. The few little hints we get as the book goes on as to the actually truth make for a compulsive read but the anticipation I felt throughout was perhaps never really realised.