I really love the forward of this book where Wilbert says the meanings of "Skarloey" and "Rheneas", "Skarloey" means "Lake in the Woods" and "Rheneas" means "Divided Waterfall", I think these are lovely names for two old narrow gauge engines.
I like how the first story took place after Edward chased James in "Old Iron" and before Edward came back at the end of the previous story.
It's nice that Wilbert mentioned that Edward was Skarloey's old friend who brought the passengers to the little line.
I like the first story where Skarloey talks with Edward about how much he missed his brother Rheneas, the coaches he pulled and about his little railway, I really loved how the little engine mentioned that one of the coaches smells of fish and cheese, to me that sounds like fish and chips.
I like the third story where Peter Sam pulls his train up to the lake and almost leaves the Refreshment Lady behind (I like how this happened to Wilbert as he worked as a guard on the real Talyllyn Railway), I love how kind Peter Sam treated the coaches, sings his little songs and how he grumbles on how Henry teased him.
I think I liked, most of all in this book is Old Faithful, where Skarloey's spring started to get damaged, he promised that he'll bring his passengers to the station instead of letting them take the bus.
Because if Skarloey let his passengers take the bus instead of train, then the whole railway would sadly close, just like how Toby's branch line was closed in the 7th book.
What I don't like about it is how rudely Sir Handel misbehaved, he didn't like how small the shed was, he treated the coaches very rudely and even made him go off the rails, he was punished for it.
But I'm glad that he learned his lesson and he changed to a good engine, but in later books would pretend to be ill in order to not come out and do something that he didn't like doing, like pulling trucks.
This book, however, mostly focused on Skarloey, Sir Handel and Peter Sam and not much on Rheneas despite the book is called "Four" Little Engines, but this book is fine for very little children, I loved reading it.