(Flash Comics v1 005, 1940)
A simple concept, but an endearing one: the Snow-King is a famous spy who only works during the winter, hence the name. He's possibly French (at least, he says "au revoir" a lot) and definitely cocky - he is so sure of success pulls the classic move of calling up the authorities to warn them of his next escapade.
Eventually, crack government agent Cliff Cornwall is brought in on the case and works out just why the Snow-King is a cold-weather spy: he relies on the central heating units of the buildings he burgles to disperse sleeping gas throughout them. That solved, he is quickly caught.
Love an arrogantly confident villain; love a suit accessorized with a cape; love the Snow-King. Should be BRUNG BACK as a legacy spy some day.
