Originally Posted by mrmikel
This resource is reachable but not present in the OPF <manifest>. "Reachable" means that a reference of some kind that points to this resource exists in the epub.
The resource mentioned, OEBPS/Text/UK-RAF-I-1_split_000.html, was deleted and I can't find it anywhere.
I am attaching the epub, which is a work in process.
This? in the Index along with the other split_000.html errors
<td class="calibre14">Chapter I</td>
<td class="calibre14"><a class="calibre19" href="../Text/UK-RAF-I-1_split_000.html">The 'Dreadful Note of Preparation'</a></td>