ten o'clock
For two hours the four companions gazed at the ever-changing procession , without the least abatement of their delight . Presently the door opened , and a negro handed the professor a letter . He opened it and read its contents aloud . `` Captain Vindex presents his compliments to Professor Woddle , and will be glad if he and his companions will accept an invitation to shoot in the weed forests under the sea to-morrow morning at ten o'clock . '' `` I 'll be hanged if I go ! '' exclaimed Stump . `` Not if I know it .