Hi i just read this and the main references to the Imperceptor are in the Forgotten Realms Adventures book by Jeff Grubb and Ed Greenwood,under the Mulmaster entry. It includes his level, quoted as 19th
- I just added the reference. Do you have a page number or page range? Artemaz (talk) 16:59, April 15, 2016 (UTC)
It would he on pages 94 and 95 the Mulmaster entry