I think you are referring yo the tiny dot on the floor,correct ?
If so, no it's not an item or anything else you can pick up. These dots appear elswhere too, theres two in the inn in Homlet, one under Furnok's feet on the floor and one under the feet of Turoko and Cobort.
I believe them to be a programming glitch, or maybee Troika had a reason for them once... They seem to appear in places of minor importance. Turoko is quest-related for LE groups and the traders are quest-related for CE groups and the Assassin quest
Hope this helps you out
