Erika opens the Purple Book entitled "Purple Magic." Go Figure. She flips the pages to the introduction page and started to read.
Purple Magic spells are used to bring in personal success, draw in allies, receive physical strength, magnify rulership, force others to behave as desired, enhance control, attract helpful spirits or demons, or increase will power. Purple magic spells can be gentle or strong, suggestive or coercive; what makes them all purple magic spells is that they have something to do with controlling, commanding, compelling, or bending others to one's will.
"This is pretty interesting!" Erika mutters to herself petting the cat. She flips to the table of contents. "Let's see what kind of spells there are."