Another location of the Bock's stories was the early 17th century stone fort in Kajaani. According to Bock, a castle was situated in the place already in the 13th century, when a royal treasure of Kings of Finland, including a golden buck statue, was hidden in a well in the courtyard of the castle. Some excitement arose when ground-penetrating radar investigations made in 1996 and 2000 suggested that a sizable metal item was located at 4 meters depth of the courtyard of the fort. According to the state archaeologist Henrik Lilius the item was probably an old cannon that could have fallen into the well during the destruction of the fort in 1716. A new investigation made in 2006 was not able to verify the earlier observations. During an archaeological excavation made later in 2006, it was noticed that an electric ground cable had been dug in the courtyard at 40 cm depth. According to the project manager Selja Flink of the National Board of Antiquities, it was most probably the object noticed in the ground-penetrating radar investigations. According to Flink, there is no archaeological or documentary evidence of the well mentioned by Lilius.