John Wyndham. The Day of the Triffids. Crest, 1970 (originally published 1951). 191 pages.
Fascinating, suspenseful and well written, with an occasional dry quirkiness. If you somehow don’t know anything about the plot (as I didn’t), read it without finding out more; even the most basic synopsis will spoil the first chapter.
9/10 (One of my favorites).