Three days had brought many changes to the hospital ship _Arabella_. Of the original batch of patients only Lieutenant Elbl, the German, and Andrew Denton now remained. All the others had been sent home, transferred to the government hospitals or gone back to the front, according to the character of their injuries. This was necessary because their places were needed by the newly wounded who were brought each day from the front. Little Maurie was driving the ambulance again and, with Ajo beside him and Dr. Kelsey and a sailor for assistants, the Belgian would make a dash to Ypres or Dixmude or Furnes and return with a full load of wounded soldiers.