Location: Atlantis, Spotted Tower
Depth: 400
Depth: 400
Answer: BLINDNESS
Each music clip has lyrics from one Gilbert and Sullivan operetta set to music from a different one. There is also a lyric substitution and the replacement word is a direct clue to the title or subtitle of the show containing the music.
The next step is to identify the song of the tune and find the word at the replacement position. The provided number is an index into that word.
| Lyrics song | A pattern to professors of monarchical autonomy (The Grand Duke, or, The Statutory Duel) |
| Lyrics replacement word | piracy |
| Tune song | I am the very model of a modern Major-General (The Pirates of Penzance, or, The Slave of Duty) |
| Matching word in tune | vegetable |
| Index | 8 |
| Result | L |
| Lyrics song | Death to the invader (Princess Ida, or, Castle Adamant) |
| Lyrics replacement word | patient |
| Tune song | Twenty lovesick maidens we (Patience, or Bunthorne's Bride) |
| Matching word in tune | maidens |
| Index | 4 |
| Result | D |
| Lyrics song | He is an Englishman (H.M.S. Pinafore, or, The Lass That Loved a Sailor) |
| Lyrics replacement word | guard |
| Tune song | I have a song to sing (The Yeomen of the Guard, or, The Merryman and his Maid) |
| Matching word in tune | sup |
| Index | 1 |
| Result | S |
| Lyrics song | If you're anxious for to shine (Patience, or Bunthorne's Bride) |
| Lyrics replacement word | curses |
| Tune song | When the night wind howls (Ruddigore, or, The Witch's Curse) |
| Matching word in tune | moonlight |
| Index | 4 |
| Result | N |
| Lyrics song | My eyes are fully open (Ruddigore, or, The Witch's Curse) |
| Lyrics replacement word | statutory |
| Tune song | By the mystic regulation (The Grand Duke, or, The Statutory Duel) |
| Matching word in tune | sign |
| Index | 2 |
| Result | I |
| Lyrics song | Oh better far to live and die (The Pirates of Penzance, or, The Slave of Duty) |
| Lyrics replacement word | peerless |
| Tune song | When Britain really ruled the waves (Iolanthe, or, The Peer and the Peri) |
| Matching word in tune | Bess's |
| Index | 1 |
| Result | B |
| Lyrics song | Short sharp shock (The Mikado, or, The Town of Titipu) |
| Lyrics replacement word | adamantine |
| Tune song | Towards the empyrean heights (Princess Ida, or, Castle Adamant) |
| Matching word in tune | taken |
| Index | 5 |
| Result | N |
| Lyrics song | When maiden loves (The Yeomen of the Guard, or, The Merryman and his Maid) |
| Lyrics replacement word | town-girl |
| Tune song | On a tree by a river (The Mikado, or, The Town of Titipu) |
| Matching word in tune | tree |
| Index | 4 |
| Result | E |
| Lyrics song | When you're lying awake (Iolanthe, or, The Peer and the Peri) |
| Lyrics replacement word | pinafore |
| Tune song | I'm called Little Buttercup (H.M.S. Pinafore, or, The Lass That Loved a Sailor) |
| Matching word in tune | ribbons |
| Index | 7 |
| Result | S |
The lyrics/tune pairs form a circular chain which provides an ordering. Choose the right direction and the right place to break the chain to get the answer, BLINDNESS.