In Chapter 6 of Jalaleddin, Raffi sez that the Kurdish brigands are transporting the Armenian captives toward the Sumay-ye district of Persia (located along the Western shore of Lake Urmia, along the Ottoman border) with skulls on spears placed at the front of the caravan to encourage everyone to keep a steady pace. Then, in Chapter 7, after Sarhat and his gang intercept the caravan, Sarhat tells Deli-Baba to lead the rescued captives across the Persian border, where the Armenians of Salmas (the district just north of Sumay-ye) would keep them safe.
It turns out that there was a collective community of Armenians and Assyrians in the region of Lake Urmia, where the lines separating Armenian and Assyrian had started to blur. For example, pictured below is the local Church of St John the Baptist in Balanej, constructed in the Assyrian style. It incorporates Armenian inscriptions and is owned by the Armenian Apostolic Church, while the nearby Armenian church of St. Mary (not pictured) is in the care of local Assyrians.
In his three-part talk (1, 2, 3), Nicholas Al-Jeloo surveys the various forms of cooperation unique to the Armenians and the Assyrians of the Lake Urmia region. It is perhaps not a coincidence that Raffi, who was from Pekajik, was married to an Assyrian named Anna Hormouz.