The Phantom of Blackwood Manor
A creepy shadow creature has raided the Whispering Archives of Blackwood Manor, locking away the town's oldest histories. Detective, examine the eerie evidence left behind to unmask the culprit before midnight!
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
| Name | Ghostly Power | Haunted Artifact | Glove Habit | Hair Evidence | Spectral Weakness |
|---|---|---|---|---|---|
| Peter Straub | Shadow Melter | Cursed Compass | Wears Right Glove | Silver Strands | Bright Sunlight |
| Dean Koontz | Ghostly Flight | Iron Chains | Wears Left Glove | Raven Black | Salt Powder |
| Anne Rice | Mind Echo | Bone Whistle | Wears Left Glove | Ashen Grey | Bright Sunlight |
| Neil Gaiman | Gloom Shroud | Phantom Lantern | Wears Left Glove | Raven Black | Salt Powder |
| Mary Shelley | Frost Chill | Phantom Lantern | Wears Left Glove | Raven Black | Salt Powder |
| Bram Stoker | Mind Echo | Bone Whistle | Wears Left Glove | Raven Black | Silver Bell |
| Ira Levin | Shadow Melter | Cursed Compass | Wears Left Glove | Ashen Grey | Salt Powder |
| Richard Matheson | Frost Chill | Cursed Compass | Wears Right Glove | Silver Strands | Silver Bell |
| Ray Bradbury | Ghostly Flight | Spectral Mirror | Wears Right Glove | Raven Black | Silver Bell |
| Victor Frankenstein | Shadow Melter | Cursed Compass | Wears Right Glove | Raven Black | Silver Bell |
| Ambrose Bierce | Mind Echo | Phantom Lantern | Wears Left Glove | Ashen Grey | Silver Bell |
| Robert Bloch | Gloom Shroud | Bone Whistle | Wears Right Glove | Raven Black | Salt Powder |
| Clive Barker | Frost Chill | Iron Chains | Wears Right Glove | Ashen Grey | Bright Sunlight |
| M R James | Frost Chill | Iron Chains | Wears Right Glove | Raven Black | Silver Bell |
| Arthur Doyle | Gloom Shroud | Bone Whistle | Wears Left Glove | Ashen Grey | Bright Sunlight |
| Wilkie Collins | Shadow Melter | Bone Whistle | Wears Left Glove | Raven Black | Bright Sunlight |
| R L Stine | Mind Echo | Cursed Compass | Wears Left Glove | Raven Black | Bright Sunlight |
| H P Lovecraft | Ghostly Flight | Cursed Compass | Wears Left Glove | Ashen Grey | Salt Powder |
| Shirley Jackson | Gloom Shroud | Bone Whistle | Wears Left Glove | Raven Black | Salt Powder |
| Stephen King | Frost Chill | Bone Whistle | Wears Left Glove | Ashen Grey | Silver Bell |
| Edgar Poe | Mind Echo | Bone Whistle | Wears Left Glove | Raven Black | Salt Powder |
Addition
The night curator tallied up all the ancient spellbooks recovered from dusty shelves to unlock the first clue.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Subtraction
Subtracting the extinguished candles from the total stock revealed a hidden encrypted note behind the altar.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Fractions of a number
The detective calculated a fractional portion of gargoyle statues pointing toward the phantom's secret hideout.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Order of operations
Following the strict order of multi-step steps to unlatch the iron vault lock produced the key evidence.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Division facts (1-12) — the last clue
Dividing the protective charms equally among search teams uncovered the final whisper clue.
First solve each problem. Then find each answer in the list below and cross that sentence out. One sentence will be left — that's exactly what the villain did!
Name the culprit
Choose the one suspect left standing.
Answer Key — The Phantom of Blackwood Manor
- Clue 1 (Addition): "THE PHANTOM DOES NOT CARRY IRON CHAINS"1449 + 3223 = 4672 (T) · 2891 + 5947 = 8838 (H) · 4436 + 4161 = 8597 (I) · 4137 + 5586 = 9723 (A) · 1101 + 2378 = 3479 (R) · 3604 + 4248 = 7852 (S) · 1497 + 1951 = 3448 (C) · 2513 + 1825 = 4338 (M) · 2713 + 3969 = 6682 (O) · 1737 + 2427 = 4164 (D) · 4083 + 2620 = 6703 (P) · 3469 + 3768 = 7237 (N) · 2606 + 3540 = 6146 (E) · 5466 + 4285 = 9751 (Y)
- Clue 2 (Subtraction): "THE PHANTOM WORE A GLOVE ON THE LEFT HAND"7350 - 1719 = 5631 (T) · 9490 - 1583 = 7907 (O) · 11961 - 4181 = 7780 (R) · 4622 - 28 = 4594 (L) · 4923 - 315 = 4608 (M) · 10590 - 1777 = 8813 (P) · 8826 - 3973 = 4853 (V) · 8902 - 3978 = 4924 (G) · 10753 - 3303 = 7450 (D) · 10250 - 4469 = 5781 (F) · 4225 - 1326 = 2899 (H) · 9622 - 2220 = 7402 (W) · 5074 - 3628 = 1446 (A) · 6633 - 2866 = 3767 (E) · 12085 - 4025 = 8060 (N)
- Clue 3 (Fractions of a number): "THE PHANTOM FLEES FROM SALT POWDER"2/5 of 85 = 34 (T) · 3/10 of 70 = 21 (N) · 3/6 of 44 = 22 (M) · 4/8 of 18 = 9 (D) · 1/10 of 60 = 6 (S) · 7/10 of 50 = 35 (H) · 4/8 of 74 = 37 (L) · 5/10 of 52 = 26 (E) · 4/8 of 78 = 39 (R) · 1/4 of 28 = 7 (W) · 6/8 of 36 = 27 (P) · 4/10 of 80 = 32 (O) · 1/8 of 144 = 18 (F) · 3/6 of 58 = 29 (A)
- Clue 4 (Order of operations): "RAVEN BLACK STRANDS FELL AT THE SCENE"48 + 3 × 4 = 60 (R) · 8 + 2 × 2 = 12 (A) · 12 × 5 - 10 = 50 (T) · 7 × 6 - 6 = 36 (S) · 7 × 3 - 1 = 20 (K) · 7 × 7 - 4 = 45 (B) · 6 × 6 - 28 = 8 (N) · 7 × 10 - 22 = 48 (E) · 9 × 10 - 20 = 70 (D) · 8 × 8 - 21 = 43 (H) · 29 + 4 × 8 = 61 (C) · 7 × 6 - 18 = 24 (V) · 7 × 7 - 9 = 40 (L) · 7 × 6 - 27 = 15 (F)
- Clue 5 (Division facts (1-12)): surviving statement (box 5) → Neil Gaiman6 ÷ 1 = 6 · 24 ÷ 2 = 12 · 32 ÷ 8 = 4 · 35 ÷ 5 = 7 · 88 ÷ 8 = 11 · 40 ÷ 4 = 10 · 1 ÷ 1 = 1 · 36 ÷ 4 = 9 · 3 ÷ 1 = 3 · 48 ÷ 6 = 8 · 10 ÷ 5 = 2
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Addition, Subtraction, Fractions of a number, Order of operations, Division
- Reading level
- grades 5-6
- Theme
- The Phantom of Blackwood Manor — set in Blackwood Manor Whispering Archives
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects
