Speaking is a bit of an unusual way of conveying thoughts, for a race that naturally communicates through localized mental networks. And pheromones. Some travelers have reported that when a few indrel seemed to be having a (silent) heated discussion amongst themselves, they could really smell the result.

In the trip report, it is described as: "Kinda... tangy, I guess? Hell if I know." This then led to an investigative survey funded by several prominent local tradehouses to determine whether or not the indrel's pheromones were capable of influencing other races, and/or if they were filled with some manner of delicious tangy fruitlike substance. The result was negative on b counts, and the scholar who suggested the studies was ritualistically pelted with books by his peers for his failure.