41. Anna and the Prince put on a mask and hide among the dancers of the masked ball . 42. The Gran Teatre del Liceu in Barcelona has a new production of " A Masked Ball ." 43. They are already at work on this year's benefit, which will be a masked ball on July 10. 44. This calls for a little imagination to create the perfect carnival, casino, masked ball , luau or rodeo setting. 45. That the party at which the wooing of Hero begins is a masked ball takes on special significance. 46. The masked ball was invented there. 47. The Head is rowing's masked ball . 48. In subsequent seasons the entertainments included a mixture of assemblies, masquerades ( masked balls ) and subscription concerts. 49. Count Francesco Cenci has arranged for a masked ball to celebrate the death of his two sons at Salamanca. 50. In my mind they were seriously modified and I was the one in street clothes at a masked ball .