original: When no one showed any interest, Cave took on the task by himself.
simplifications: Since no one showed interest, Cave worked on the task alone. When no one showed interest, Cave did it himself. When no one showed interest, Cave did it himself. When no one showed interest, Cave did the task himself. When no one showed any interest, Cave did it himself. Cave took on the task alone after no one showed interest. With no one interested, Cave took on the task himself. Cave took on the task by himself when no one showed any interest,. Cave took over the task by himself when no one showed any interest. Cave did the task by himself when no one showed any interest.