IN a rather cramped but well-appointed ward of the intensive cardiac care unit of a small charitable hospital in east Calcutta, you come across the disturbingly inscrutable visage of an enormous tragedy. It socks you hard. Its the face of 66-year-old Mihir Sen, the all-Indian hero, who over three decades ago swam into the record books by conquering the English Channel and Palk Straits. Unfortunately, its a void which you strive to grasp, but in vain. For its a sieve that holds nothing. Mihir Sen has no story to tell of his glory days. Of his double conquest. But do we really care?