The Eliot-Pearson Children's School at Tufts University invites the community to "The Dragon King," performed by the award-winning Tanglewood Marionettes. An underwater fantasy based on Chinese folklore, "The Dragon King" tells the tale of an intrepid grandmother who journeys to the bottom of the sea in search of the elusive Dragon King, and the answers to why he has forsaken the land above. Tickets are $10 through the event web page; free admission for children under age 3. All proceeds…