In the Heart of the Beast Puppet and Mask Theatre is an American puppet company and nonprofit organization based in Minneapolis, Minnesota. The theatre serves audiences through puppetry performance and education. The company has written and performed scores of full-length puppet plays, performed throughout the United States, Canada, Korea, and Haiti and toured the Mississippi River from end to end. The theatre historically sponsored the annual May Day Parade and Ceremony that was seen by as many as 50,000 people each year.