Sandcastle (French: Château de sable) is a 2011 French-language graphic novel published by Atrabile , written by Pierre Oscar Lévy from France and drawn by Frederik Peeters from Switzerland. Nora Mahony translated the work into English, with that version released in 2013.[1] SelfMadeHero published the English version.
It is the inspiration for the 2021 American film Old, which has some differences in the character composition.[1]