Adolpho was an infamous thief, well-known to both Felix and Marcus, among others. He had collected a lot of information on the Bonehoard, and was convinced that a valuable gemstone known as the Mystic's Soul was hidden there. He entered the Bonehoard with the intention of collecting it, but was killed by a pressure trap in the lower tombs, deep below the burrick tunnels, while attempting to collect fire arrows necessary to open the way to the Mystic's Soul. He left behind certain markings, indicating this location, which were followed by Marcus, who died in the watery chasm nearby. The 'X'-shaped signs noted by Sutter (Expert only) may also be Adolpho's, unless these were made by another thief in search of the Mystic's Heart.