I enjoyed the first three books in the Miss Peregrin series so when I saw a fourth book, A Map Of Days was going to be released in October I pre-ordered it from Amazon.
At the time of ordering it cost £10.49 but the day it was out for delivery I got an email from Amazon saying the following:
You saved £3.00 with Amazon.co.uk’s Pre-order Price Guarantee! The price of the item(s) decreased after you ordered them, and we gave you the lowest price.
I love Amazon!
A Map Of Days