220567
After the meeting , Gavner walks with Darren for a while , revealing to him that Mr. Crepsley was a Vampire General and was about to be invested as a Vampire Prince , who is a leader of the Vampire Clan .
 Darren
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Darren