" Whenever I’m a little blue I think about cyanide, whose color so perfectly reflects my mood. It is pleasant to think that the manioc plant, which grows in Brazil, contains enormous quantities of the stuff in its thirty-pound roots, all of which, unfortunately, is washed away before the residue is used to make our daily tapioca. "

― Alan Bradley , Speaking from Among the Bones (Flavia de Luce, #5)