| Abbots Langley Library | Adult fiction | Crime | Available |
| Baldock Library | Adult fiction | Crime | Available |
| Baldock Library | Adult fiction | Crime | Available |
| Berkhamsted Library | Adult fiction | Crime | Onloan - Due: 01 Aug 2025 |
| Bishops Stortford Library | Adult fiction | Crime | Onloan - Due: 24 Jul 2025 |
| Buntingford Library | Adult fiction | Crime | Available |
| Bushey Library | Adult fiction | Crime | Onloan - Due: 18 Jul 2025 |
| Bushey Library | Adult fiction | Crime | Available |
| Cheshunt Library | Adult fiction | Crime | Available |
| Chorleywood Community Library | Adult fiction | Crime | Available |
| Goffs Oak Community Library | Adult fiction | Crime | Available |
| Harpenden Library | Adult fiction | Crime | Available |
| Hatfield Library | Adult fiction | Crime | Onloan - Due: 23 Jul 2025 |
| Hemel Hempstead Library | Adult fiction | Crime | Available |
| Hertford Library | Adult fiction | Crime | AvailableRecently returned |
| Hertford Library | Adult fiction | Crime | Onloan - Due: 16 Aug 2025 |
| Hitchin Library | Adult fiction | Crime | Available |
| Hoddesdon Library | Adult fiction | Crime | Available |
| Kings Langley Community Library | Adult fiction | Crime | Available |
| Knebworth Community Library | Adult fiction | Crime | Available |
| Knebworth Community Library | Adult fiction | Crime | Available |
| Leverstock Green Community Library | Adult fiction | Crime | Available |
| Marshalswick Library | Adult fiction | Crime | Available |
| Marshalswick Library | Adult fiction | Crime | Available |
| Oakmere Library | Adult fiction | Crime | Available |
| Oxhey Library | Adult fiction | Crime | Available |
| Oxhey Library | Adult fiction | Crime | Available |
| Radlett Library | Adult fiction | Crime | Onloan - Due: 25 Jul 2025 |
| Redbourn Community Library | Adult fiction | Crime | Available |
| Rickmansworth Library | Adult fiction | Crime | Onloan - Due: 21 Jul 2025 |
| Royston Library | Adult fiction | Crime | Available |
| Royston Library | Adult fiction | Crime | Available |
| St Albans Library | Adult fiction | Crime | Available |
| St Albans Library | Adult fiction | Crime | Available |
| Stevenage Central Library | Adult fiction | Crime | On reserve shelf at Stevenage Central Library |
| Stevenage Central Library | Adult fiction | Crime | Available |
| Stevenage Central Library | Adult fiction | Crime | Available |
| Stevenage Central Library | Adult fiction | Crime | Available |
| Waltham Cross Library | Adult fiction | Crime | Available |
| Welwyn Garden City Library and Information Service | Adult fiction | Crime | Available |
| Wheathampstead Community Library | Adult fiction | Crime | Available |
| Woodhall Library | Adult fiction | Crime | Available |