Slayers Special Vol. 25: Encouragement of Chivalry (Japanese: 騎士道のススメ Romaji: Kishidou no susume) is the twenty-fifth book in the Slayers Special novel series, written by Hajime Kanzaka and illustrated by Rui Araizumi. It was published on October 20th, 2005 by Fujimi Fantasia Bunko/Kadokawa Shoten Publishing. It contains 3 2-chapters episodes previously published in the Monthly Dragon Magazine of March, April, May, June, July and August 2004, plus a new standalone episode specifically written for this novel.
