|Location||Gehn's office, Age 233 (Riven)|
The maral-obe is a D'ni woodwind instrument, apparently similar to an oboe. Gehn owned a maral-obe and often played it while on Age 233; he writes that it helps focus his mind when Writing. He recorded one of his sessions on the maral-obe onto his cannen, also in Age 233. During the events in Riven, the maral-obe was placed in Gehn's bedroom next to a portrait of his father Aitrus.