Another patron is preoccupied with inventing herbal medicines and healthy teas. He believes in immune system stimulating, antibiotic, and wound-healing properties of Echinacea, the purple coneflower. As these properties have not been sufficiently documented and confirmed scientifically, he and his several colleagues are concocting and testing new compositions of herbs. That person picks Kitten up for his experiments while the poor rat is on his way out of the library.