Just spotted Robin Hobb's
The Complete Liveship Traders Trilogy:
Ship of Magic,
The Mad Ship,
Ship of Destiny for £4.49:
https://www.amazon.co.uk/s?k=robin+h...nb_sb_ss_i_1_6
The individual volumes are £1.99 each:
Ship of Magic:
https://www.amazon.co.uk/Ship-Magic-...ext,148&sr=1-5
The Mad Ship:
https://www.amazon.co.uk/Mad-Ship-Li...ext,148&sr=1-4
Ship of Destiny:
https://www.amazon.co.uk/Ship-Destin...ext,148&sr=1-3
Having already got the first, I just grabbed the last 2.