Death (Discworld)
Death has appeared in every Discworld novel, with the exception of "The Wee Free Men" and "Snuff", and had a possible cameo at the end of "Johnny and the Dead" (the character was not identified, but spoke in unquoted small caps). The Discworld books with Death as a leading character, starting with "Mort" in 1987, are:
List of dimensions of the Discworld
Any clocks brought into Death's Domain get depressed and stop working. The only working clock is the special grandfather clock in the hall with a scythe for a pendulum. The 'minute' hand takes thousands of years to go around. The 'hour' hand will only go around once. The Inscription on the clock reads; "Too Late".