Decipher the following message (it was enciphered with a column-scrambled matrixtransposition cipher - the letters are again in groups of five).
Answer:
The scrambed matrix is:
| N | R | O | E |
| N | T | I | G |
| R | L | O | U |
| T | E | E | H |
| A | L | M | L |
| N | R | O | E |
| N | T | I | G |
| F | N | O | I |
| T | E | D | H |
| O | E | M | N |
| I | G | R | N |
| O | R | T | B |
| N | T | I | G |
| E | A | H | M |
| L | N | L | A |
| I | T | D | N |
| E | A | H | D |
| K | E | R | N |
| S | I | S | B |
| D | H | N | T |
| M | X | E | X |
The unscrambed matrix is:
| O | N | E | R |
| I | N | G | T |
| O | R | U | L |
| E | T | H | E |
| M | A | L | L |
| O | N | E | R |
| I | N | G | T |
| O | F | I | N |
| D | T | H | E |
| M | O | N | E |
| R | I | N | G |
| T | O | B | R |
| I | N | G | T |
| H | E | M | A |
| L | L | A | N |
| D | I | N | T |
| H | E | D | A |
| R | K | N | E |
| S | S | B | I |
| N | D | T | H |
| E | M | X | X |
The message is "one ring to rule them all, one ring to find them, one ring to bring them all and in the darkness bind them," from The Lord of the Rings.