The Howler Leeches are fearsome, extraterrestrial organisms featured in the Konspiracy Komiks book The Attack of the Howler Leeches (guaranteed to be 37% true!). According to the comic book, the Howler Leeches are coming to attack Earth. The invasion consists of three stages: 1. * Somehow the Leeches manipulate Earth's climate to create a new Ice Age; 2. * They arrive on the planet in their atomic, blood-propelled U.F.O.s; 3. * The Leeches devour all creatures on the world and slowly digest them for 35 years.