I will second
The Golem and the Jinni, excellent book.
I will nominate
American Gods by Neil Gaiman which won several best novel awards including the 2001 Bram Stoker Award, 2001 Hugo Award, and 2002 Nebula Award.
Spoiler:
Days before his release from prison, Shadow's wife, Laura, dies in a mysterious car crash. Numbly, he makes his way back home. On the plane, he encounters the enigmatic Mr Wednesday, who claims to be a refugee from a distant war, a former god and the king of America.
Together they embark on a profoundly strange journey across the heart of the USA, whilst all around them a storm of preternatural and epic proportions threatens to break.
Scary, gripping and deeply unsettling, AMERICAN GODS takes a long, hard look into the soul of America. You'll be surprised by what and who it finds there...
Awards: Bram Stoker Award for Best Novel (2001), Hugo Award for Best Novel (2002), Nebula Award for Best Novel (2002), Locus Award for Best Fantasy Novel (2002), International Horror Guild Award Nominee for Best Novel (2001), World Fantasy Award Nominee for Best Novel (2002), SFX Award for Best Novel (2002), Geffen Award (2003), Mythopoeic Fantasy Award Nominee for Adult Literature (2002), Prix Bob Morane for roman traduit (2003)
Goodreads
Amazon US
Also available from many
libraries