The Skirmish in the Caves occured when Arthur, Merlin, Gwen, Tristan and Isolde were chased by Agravaine and the Southrons. Merlin sent The Great Dragon for them, but while the group of fugitives entered the tunnels near Ealdor, Agravaine and few Southrons escaped the flames of the Dragon and got in the tunnels as well. The fugitives heard movements behind them, and Merlin proposed to head back and create a diversion.