Comments: 1
I love this book -- and I agree, this is definitely a piece of ACD tribute; not only in Hastings's role as such but also in many details. Poirot even has a quintessential Sherlockian moment:

"... But at least, my friend, you have the railway guide. The A B C, that is a clue for you!"
"Do you think he left it by mistake then?"
"Of course not. He left it on purpose. The fingerprints tell us that."
"But there weren't any on it."
"That is what I mean."

Can't get much closer than that to "Silver Blaze" and the curious incident of the dog in the night time!