In Lord of the Mysteries, a Dual-Sequence advancement meant that a Beyonder advanced to two Sequences at the same time, reaching the level of a Dual-Sequence professional. Dual-Sequence advancement was an extremely difficult process. It required Beyonders to reach a certain level and ability in both Sequences. Furthermore, it required special conditions and methods. In Lord of the Mysteries, the conditions and methods for dual-Sequence advancement weren't clearly stated. Therefore, it was impossible to determine whether dual-Sequence advancement was possible. However, according to the novel's description, advancing to the Double-Sequence was an extremely difficult process. It required Beyonders to possess extremely powerful strength and special conditions. In the novel, there were some Beyonders who attempted to advance to the dual-Sequence, but none of them succeeded. For example, when the protagonist Klein Moretti advanced to the Scholar of Yore sequence, he encountered great difficulties. In the end, he could only advance to the Attendant of Mysteries sequence. Therefore, it wasn't easy to advance to a dual-Sequence Beyonder. It required a Beyonder to possess extremely powerful strength and special conditions. Hurry up and click on the link below to return to the super classic " Lord of the Mysteries "!