| Clue | Source | Date |
|---|---|---|
| Introduction to 18 across linked to books kept back in safe places in case of financial crisis | Irish Times Crosaire | 16 Apr 2020 |
| By opening 18 across, saves commercial financial deposits | Irish Times Crosaire | 19 Oct 2017 |
| Bar on the weekend has books often stolen by big-time thieves | Irish Times Crosaire | 27 Mar 2015 |