Some Robert B Parker titles/continuation titles, all £0.99, all repeats on sale
Stone Cold, fourth in the Jesse Stone series:
https://www.amazon.co.uk/Stone-Cold-...dp/B00D0UXYAU/
Slow Burn, #45 in the Spenser series, as continued by Ace Atkins:
https://www.amazon.co.uk/Robert-Park...dp/B01N75D3J0/
Old Black Magic, also in the Spenser series as continued by Ace Atkins:
https://www.amazon.co.uk/Robert-Park...dp/B07FY4CV3C/
Kickback, #44 in the Spenser series, as continued by Ace Atkins:
https://www.amazon.co.uk/Robert-Park...dp/B01AI5F3YE/
The Hangman's Sonnet, in the Jesse Stone series as continued by Reed Farrel Coleman:
https://www.amazon.co.uk/Robert-Park...dp/B076H2NVK4/