Blizzard saw that she had taken a book, perhaps the same one the healer had? He followed her faithful to the woods without knowing why she went all this way but he could take a pretty good guess. She showed him the plain leather cover and then brought his attention to her voice as one of her small soft hands slipped onto his snout and she spoke. She wished to defy her father and seek this flower anyways? It may have been a desire to prove herself as a dragon rider or maybe Berk already meant this much to her. Her mother’s sudden illness probably was the deciding factor though. He didn’t want to see Ava or his own mother so downhearted, knowing he was physically able to make this journey… Ava wasted no time getting onto his back and he took off- catching the icy currents of the wind and sailing away from Berk.

Maybe he had been too hard on her- Hiccup wasn’t sure he was honest enough about the reason he wanted Ava to say. He’d already lost her once- he really wasn’t ready to lose her again. He took it upon himself to apologize and set out to find her, leaving his mother to look after Castiel.