Notes
"First published in paperback in Great Britain 2016 by Egmont UK Limited"
There is no number line, but there is a line with the number 62457/1. It's currently unknown what it means, but other books by this publisher include similar numbers with the last digit changing within the same edition, possibly indicating different printings. the number after the slash may be the printing number, which would make this record the first printing.
Date from Amazon UK as of 2016-03-07.
"Illustrated by Pete Williamson" on the back cover.