The Adventures of Fafhrd and the Gray Mouser Volume One (Swords and Deviltry, Swords Against Death, and Swords in the Mist) by Fritz Leiber is available for £2.59 at Kobo UK.
https://www.kobo.com/gb/en/ebook/the...he-gray-mouser
or (it seems to make no difference)
https://www.kobo.com/gb/en/ebook/the...ser-volume-one
Curiously the individual books
Swords and Deviltry and
Swords Against Death are also on offer (price reduced) for £3.99 and £3.39 respectively...