X

 Kinsey Millhone, mystery, private detective

X:  The number ten. An unknown quantity. A mistake. A cross. A kiss.
X:  The shortest entry in Webster’s Unabridged. Derived from Greek and Latin and commonly found in science, medicine, and religion. The most graphically dramatic letter. Notoriously tricky to pronounce: think xylophone.
X:  The twenty-fourth letter in the English alphabet.

Sue Grafton’s X: Perhaps her darkest and most chilling novel, it features a remorseless serial killer who leaves no trace of his crimes. Once again breaking the rules and establishing new paths, Grafton wastes little time identifying this sociopath. The test is whether Kinsey can prove her case against him before she becomes his next victim.

Kinsey seems a little bit different in this 24th installment of her alphabet series. She says sh*t more frequently and she's grumpier than ever before which is IMHO a good thing because eventually it worked well for her and her landlord Henry. She also is funnier, showing a lot of her sense of humor. I'll miss Kinsey when the series comes to an end. Yes, only 2 more to go, Y and Z.

Spoilers ahead