Lucien's sudden transformation despite having lost his wolf was the first hottest topic that the werewolf society talked about for the next two days.
Most people thought that maybe Lucien never lost his wolf. But if he had not lost his wolf, why could no one detect his wolf? Werewolves instinctively recognized each other.
Did Lucien not lose his qualification to be the next Alpha because he was no longer a complete werewolf? He even left the pack out of shame and lived far far away from his family.
An elder in the Werewolf Council cited a phenomenon called "wolf possession". It happened when a human being was possessed by a wolf spirit and then transformed into one. Said wolf spirit would continue controlling the body until the human being was strong enough to break free from the possession.