"The Case of the Smoking Chimney" by Erle Stanley Gardner (Horwitz, 1963)

Found at the Lifeline Bookfair. Where else?

Millions of readers throughout the world read the cases of wily lawyer-detective Perry Mason and follow his brilliant courtroom career on television.

Here is another fast-moving story of Erle Stanley Gardner's famous hero.

This blurb on the back cover literally says nothing but: Here is another Perry Mason adventure.  But what else do you need to say?

(Oh, and it ties it in nicely with the Perry Mason TV series by depicting our hero on the cover looking suspiciously like Raymond Burr!)