A review by 1outside
The Ape Who Guards the Balance by Elizabeth Peters

5.0

This must be the best book in the series so far, and many of them have already been quite brilliant (I have read them in the order in which they were published). There is a slight change of tone - there is still humour, but there is also more reflection and seriousness, and the different "sources" for the narrative have matured (even Amelia herself).
And it was still a grand adventure!

(But this time I cried.)