Turns out it was illustrated by Edward Gorey. His imagery is best described as dark, witty & Edwardian. He lived in Cape Cod - and I think a visit to his home/museum just jumped to the top of my to-do list.
His humor is dark, and his style is eerie, but funny and beautiful at the same time.
To wet your Edward Gorey whistle - below are a four of the 26 the ill-fated children from his book the Gashlycrumb Tinies
// images from here