| Abbots Langley Library | Adult fiction | Crime / Paperback | Available |
| Baldock Library | Adult fiction | Crime / Paperback | Available |
| Berkhamsted Library | Adult fiction | Crime / Paperback | Available |
| Bishops Stortford Library | Adult fiction | Crime / Paperback | Available |
| Borehamwood Library | Adult fiction | Crime / Paperback | Available |
| Buntingford Library | Adult fiction | Crime / Paperback | Available |
| Bushey Library | Adult fiction | Crime / Paperback | Onloan - Due: 01 Aug 2025 |
| Cheshunt Library | Adult fiction | Crime / Paperback | Available |
| Croxley Green Library | Adult fiction | Crime / Paperback | Available |
| Hatfield Library | Adult fiction | Crime / Paperback | Available |
| Hertford Library | Adult fiction | Crime / Paperback | Available |
| Hoddesdon Library | Adult fiction | Crime / Paperback | Available |
| Letchworth Library | Adult fiction | Crime / Paperback | Available |
| Marshalswick Library | Adult fiction | Crime / Paperback | Available |
| North Watford Library | Adult fiction | Crime / Paperback | Available |
| Oakmere Library | Adult fiction | Crime / Paperback | Available |
| Oxhey Library | Adult fiction | Crime / Paperback | Available |
| Radlett Library | Adult fiction | Crime / Paperback | Available |
| Rickmansworth Library | Adult fiction | Crime / Paperback | Available |
| Royston Library | Adult fiction | Crime / Paperback | Available |
| St Albans Library | Adult fiction | Crime / Paperback | Available |
| Stevenage Central Library | Adult fiction | Crime / Paperback | Available |
| Tring Library | Adult fiction | Crime / Paperback | Available |
| Ware Library | Adult fiction | Crime / Paperback | Onloan - Due: 28 Jul 2025 |
| Watford Central Library | Adult fiction | Crime / Paperback | Available |
| Welwyn Garden City Library and Information Service | Adult fiction | Crime / Paperback | Available |