For transparency, here was the method I used to randomly picked the winner
Use Microsoft Word to get the word count for Archie Solves the Case
Divide by 3, with a remainder value of 0 selecting the first entry, 1 selecting the 2nd, 2 selecting the 3rd.
Word count turned out to be 14,631, which divided by 3 gives a remainder of 0
And thus, the Winner was picked!
Congratulations, Elizabeth! Once I get your mailing address, a copy will be put in the mail!