At last we came in sight of a lofty tower on the top of a hill in Saint Martin's Island, with the long low outline of Saint Mary's beyond. Still, we had several tacks more to make before we gained the entrance to Crow Sound, between Saint Mary's and Saint Martin's.  By this time it was dark.  A bright look-out was kept for rocks and shoals in the channel.  Suddenly rounding a point, the light from Saint Agnes shone brilliantly down on us, and further to our right we saw the little twinkling lights from the windows of the houses in Hugh Town, the capital of the Scilly Islands.