/usr/lib/x86_64-linux-gnu/libe-book-0.1.so is in libe-book-dev 0.1.2-2ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libe-book-0.1.so.1.0.2
/usr/lib/x86_64-linux-gnu/libe-book-0.1.so.1.0.2