The Sudoku Murder A Katie Mcdonald Mystery.

"This intriguing first in a new series from Freydont ( A Merry Little Murder and four other mysteries featuring dancer Linda Haggerty) introduces mathematician and Sudoku whiz Katie McDonald. Katie, a self-professed geek who works for a hush-hush government think tank, returns to her hometown of Granville, NH, at the behest of her former mentor, P.T. Avondale. Katie is shocked to find Avondale frail and preoccupied, his beloved puzzle museum in...