Le Grenier De Papy Denis [Grandpa Denis' Attic]

My grandfather, this great adventurer/explorer and geo-find-everything, has just fallen seriously ill… Recently found in a deep coma, he wakes up twice a day at a specific time and seized by an attack of intense madness, he falls back into it a few seconds later…. I don't know what happened and I need you to get into his office in a corner of the now uninhabited family home. Will you be able to unravel the mysteries of this great man's life and understand what ailment he suffers from?