The corium that Axel's grandfather had been poisoned with for years had left some traces and even though it had been completely eliminated from his system, all the extraordinary abilities that his grandfather possessed as the Supreme Alpha of his world had still not returned to what they had once been... At least they hadn't the last time they'd been there.
But since they had eliminated all the Werewolves with corrupted souls, and all the Alphas had finally recognized Axel as their undisputed leader, his family should have had no more problems and peace should have returned to their world.
But Kevin was right, they absolutely had to return to this world, and not just to visit his family but to get the answer from the Alphas of this world.