1x18 - Tears to Tiara

When all hopes are gone suddenly Arthur returned to their rescue together with Taliesin's tribe. Arthur screams for Arawn and as Gaius' is about to break the last line of defense Arawn shows up giving hope once more to his comrades and friends. All were enlightened with his return, especially Riannon. Arthur and Gauis had a duel and as he realized that what Arawn wants is not the way of the king but Little King he died in Arthur's hands. His last wishes were to spare his remaining soldier's lives. At the Empire's capital, a figure in white attacks and burns the Imperial Senate to death after revealing to them the death of the Holy Emperor.