Blu expected the hellish nightmare to return, instead his wounds healed, the chains broke and the skies cleared. The four stones appeared, and four voices resonated, "Our apologies, Ventus, we had to test your strength. Your resiliance is strong, but do you understand equivalent exchange?" Blu thought for a long while, then it came to him. "Nothing can be gained without sacrifice, and through that pain achieve strength", he said. "Blu, have you achieved strength?", the voices asked.