Tintin Easter Egg - King Ottokar's Sceptre - Hergé in the Hall

Just open the book in one of the last pages, where Tintin is in the kings hall before he is thanked by the king. At the right side there is a little blond head looking over the others, he's tall and quite young with a big nose. Well, that's Hergé, the author of all the Tintin books.