If you need a good laugh, Good Omens it is (or The Bartimaeus Trilogy heh). Here's a synopsis:
It's about our world coming to an end. An Antichrist, came to earth in a disguise of a young boy, named Adam Young (Yes, Adam) and a hellhound, named 'Dog' was sent to help him (How it all started was hilarious! haha). The apocalypse prepared themselves for a final journey on earth, while the angel, Aziraphale, and the demon, Crowley, two earthbound supernatural beings, (who have been on earth for a long, long while, and don't wish to see it come to an end) witnessed the events unfold before them.
Be prepared for the many footnotes (just like the ones in The Bartimaeus Trilogy, which to me, are funnier) in the book. Some of which, are quite unnecessary, really. Nevertheless, overall, it's quite an entertaining read, with hilarious conversations between Aziraphale and Crowley, two of my favourite characters.