Talk:Grimbeard the Ghastly/@comment-25106214-20170605224350

So, I've just had a thought. Grimbeard seems to know most of what happens in the series, right? All of his prophecies which only Hiccup can fulfill, and cryptic notes to Hiccup, and so on. But how? Hiccup was never destined to be born. Old Wrinkly and Excellinor both failed to predict his existence. So how was Grimbeard able to see Hiccup's future so accurately?