Earl Derr Biggers 
Love Insurance 

The basic plot of this book is built around the reputation the Lloyds of London insurance firm had for ensuring all manner of unlikely propositions. Lord Harrowby is advised to marry a wealthy heiress. Luckily he meets Cynthia. She is rich, beautiful and willing to marry him. But, since he comes from a family of gamblers, he goes to Lloyds of London and takes an insurance policy to ensure his bride makes to the alter. Lloyds sends a handsome young man to make sure nothing stops the wedding. But, handsome young man meets beautiful young woman and falls in love, only to discover she is the bride to be. What follows is a comic novel of improbable dimensions, by the world-famous creator of Chinese detective Charlie Chan!