Demon Slayer Manga Chapter 65

An old book may hold the answers Tanjiro crossed the country to find. Demon Slayer Chapter 65 has Senjuro bring out the chronicle of the Flame Hashira, a record kept by generations of the family. Tanjiro searches its pages hungrily for anything about the Hinokami Kagura and Sun Breathing.

What he finds is frustrating: the passages about the thirteenth form have been torn away, and little else survives. Before leaving, Tanjiro comforts the grieving Senjuro, telling him to follow the path he believes in, just as his brother did. The two part with a promise to write to each other.