"I believe I understand," Yssil murmured. He turned to the triangle, which still held Aerta's water thrall inside, waiting to be given a command or dismissed. Yssil supposed he'd have to get rid of it first if he wanted to summon one of his own. Or perhaps he could simply summon an additional one...He decided to give this last idea a try. He focused on the perfectly triangular summoning shape, felt Aerta's magic [i]outside[/i] and his own magic [i]inside[/i] and focused his power, will, and intent in order to summon an additional water-elemental thrall. He did as he saw Aerta had done and worked the energy he could feel flowing in his veins, staying focused and staring with determination at the triangle until another thrall would manifest inside of it.