Veronica Roth had cleverly crafted an intricate world of choice and decision in her previous two books, and then threw it away on a whim in Allegiant.
Part of the charm and startling quality of Divergent and its successor Insurgent was the worrying world in which Tris and her chums/enemies lived, so when we move from this magical world something is lost. By revealing her truth about the set-up, Roth weaves a tale akin to the ‘and I woke up and it was all a dream’ prose that was banned by all year 6 teachers - as though she had gone to such an effort to make a wonderful story and setting, to lessen its impact somewhat.
Brutally horrific ending aside, I feel this book lost its way down a long rambling compared to its predecessors. It didn’t have a true direction, more like trying to tie a hundred loose ends all together in an unsatisfactory bow, with an unnecessary death to top it all off.

In one word: disappointing.
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