Vo returns with beautiful prose for The Singing Hills Cycle, and I was really taken to the particular focus on the complexities of grief. Mammoths at the Gates felt a bit heavier and more serious than the previous installments, with Chih having to contend with grief and loss. Another key theme that I really appreciated was having to deal with the inevitability of change, which always is a struggle. I wish we could have sat longer with Chih's feelings and have time to reflect after they were away from home for years, but that would likely result in the book no longer being a novella. All things considered, though, I thought Vo did a great job exploring these deep themes without it being too shallow, while also still delivering a compelling story.

While these novellas can be read in any order, I personally think Mammoths at the Gates will be more impactful of a read if you read at least one the other novellas first.