In the State Archives in Zadar in manuscript of[1] Ante Marija Strgačić, a Glagolitic priest and historian, I found a short story about a faint folklore story about the alleged buried treasure on Dugi otok.

The author writes about the Koženjak hill on Dugi otok, which he states is the only hill on Dugi otok that has an Italian name, Monte Zucchero, and that Italian name "does not like the people, but the people of the book".

Hill Koženjak is today located in the area of the Telašćica Nature Park, and you can read more about the location itself on the Nature Park's website. https://pp-telascica.hr/kozenjak/. In short, it is believed that the Koženjak hill used to be an Iron Age fort, converted into a lookout post or a fort in late antiquity, with an excellent geographical location, with a source of drinking water and arable fields at the foot, as well as a view of all the sea routes.

Strgačić states that there is no old tradition in the population that would be related to this hill. The view from the hill is wide, you can see the bay of Telašćica, the Kornati islands and the channel between Dugi otok and Ugljan.

Strgačić recorded that in 1935, Pave Petešić's sons, Roko and Ferdinand, were clearing the land directly under the remains on the top of the hill, and that they told him that they had found a grave slab, of ordinary dimensions, quite thick with recessed grooves on the ends, on their card. They found nothing in the grave, not even traces of bones.

Strgačić states that there is a "faint recent legend" associated with this hill, around 40-50 years ago (1895-1900) a Greek came with a ship looking for buried treasure. Some say that he managed to take it away, while others say that he was just asking about that Koženjak hill. This tradition has its source in the story of the then gendarme on Sali, Ivan Jović from Starigrad. While that Jović was a gendarme in Sukošan, he told Strgačić that a Greek was going around Zadar and looking for three hills, one of which was supposed to be called Monte Zucchero, where the treasure had allegedly been buried. When Jović came to serve on Sali, the name Monte Zucchero for Koženjak hill caught his eye, as well as the formation of the surrounding hills.

About Ivan Jović Strgačić writes that he was not gullible but a serious man, clear-headed and well-read. On Sali, he told a story about an unknown Greek and the supposed treasure, and he placed the treasure on Koženjak hill. This later led, according to Strgačić, a native of Sali, Nikola Puhov, to dig in search of treasure, but without success.

[1] Ante Marija Strgačić Personal archive fund, HR – DAZD – 373 4.1.56. "From the past of Dugi otok" (manuscript), p. 25th and 26th