Spring-heeled Jack and the President's Ring

In this second novelette in the Magnetron Chronicles series, Phineas Magnetron and the Hogalum Society investigate the disappearance of President Grant's West Point ring. Their investigation becomes intertwined with the mystery of Spring-heeled Jack, the shadowy terror of England, leading them from Calais to London, and back to America for a bizarre encounter with the notorious General Southwick.