Seven Keys to Baldpate Illustrated

Seven Keys to Baldpate is a 1913 novel by Earl Derr Biggers. "Seven Keys to Baldpate" is a mystery that will leave you guessing to the end. Earl Derr Biggers penned "Seven Keys to Baldpate" long before he created his most famous character, Chinese detective Charlie Chan, yet in its day it was a popular best-seller and became the source for no less than seven films.