Reddit reviews The " Lord of the Rings " : a Reader's Companion
We found 3 Reddit comments about The " Lord of the Rings " : a Reader's Companion. Here are the top ones, ranked by their Reddit score.
Buy a copy of The Lord of the Rings: A Reader's Companion by Wayne Hammond. It explains things like this in depth based on Tolkien's letters and other unpublished notes. In this particular case it explains the daily movements of the Black Riders and just why they aren't able to overtake Frodo. (Mostly explained by AHans below.)
If he's a big fan of the books he might enjoy the Readers Companion:
https://www.amazon.co.uk/Lord-Rings-Readers-Companion/dp/0007270607
The Atlas of Middle Earth:
https://www.amazon.co.uk/Atlas-Middle-Earth-Karen-Fonstad/dp/0618126996
or the LOTR related volumes of The History of Middle Earth:
https://en.wikipedia.org/wiki/The_History_of_Middle-earth
I saw it listed on Amazon UK https://www.amazon.co.uk/Lord-Rings-Readers-Companion/dp/0007270607 £2.22 plus shipping but I think will only ship to UK. It may well get cancelled at that price but worth a go at that price. The next one after is silly money.