On their way to Mordor Frodo and Sam encounter various places with a different degree of weirdness to them. However, few of them stand out in the same manner as the Dead Marshes. Lying between the plain of Dagorlad and the Emyn Muil, they become a grave test for the travellers en route to an even darker place.
Interrupted feasts make a recurring theme in Tolkien. Some of these are minor interruptions, like Dwarvish intrusions into Elvish merrymakings in Mirkwood: they cause mostly annoyance to the Elves, rather than present a serious threat. Other feast interruptions to be found in Tolkien’s tales are far from being annoying trifles and have serious social implications.