The conspirer

From Shelby Foote’s The Civil War: Fort Sumter to Perryville (138):

[John Slidell] was aptly named, being noted for his slyness. At the outbreak of hostilities, back in the spring, an English journalist called him, “a man of iron will and strong passions, who loves the excitement of combinations and who, in his dungeon, or whatever else it may be, would conspire with the mice against the cat rather than not conspire at all.”