H. P. Lovecraft 
Tomb 

The Tomb tells of Jervas Dudley, a self-confessed day-dreamer. While still a child, he discovers the entrance to a mausoleum, belonging to the family Hyde, whose nearby family mansion had burnt down many years previously. The entrance to the mausoleum is padlocked and slightly ajar. Jervas attempts to break the padlock, but is unable. Dispirited, he takes to sleeping beside the tomb. Eventually, inspired by reading Plutarch’s Lives, Dudley decides to patiently wait until it is his time to gain entrance to the tomb. (Goodreads)