Solution: Haunted House
Answer: IRRATIONAL FEAR

Written by aki

This puzzle involves a series of minipuzzles. The obvious thing to do is to start by solving each of the minipuzzles, which are relatively straightforward given the enumerations given. The other thing to note is that each puzzle has a specific theme as well.

Answers Extraction Theme
SMOKE DETECTOR
CARBON DATING
NUCLEAR POWER
CHEMOTHERAPY
DORA Radioactivity
BINARY
PROBABILITY
STANFORD
PARSE
DECISION
NODED Trees
GOLF
ALPHA
MIKE
MIKE
ALPHA
GAMMA (NATO) Alphabet
18 (R)
15 (O)
2 (B)
ROB Gravity
BUBBLE WRAP
HONEYCOMB
SHOWER HEAD
LOTUS SEED HEAD
PYRO Irregular holes
ROUND
HOOK
FLAT
EARTH
THREAD
TAPE
SILK
MEAL
NOTHHELM Worms
CAR
CRAWL SPACE
TUNNEL
DRESSING ROOM
ELEVATOR
CAVE
CELLAR
CRUSTAL Small spaces
COLLIE
SHEEPDOG
HUSKY
COY Dogs
AIRPLANE
HOT AIR BALLOON
HELICOPTER
ROE Flying
ANGKOR WAT
AZZAM
BLUE WHALE
GREENLAND
PACIFIC
OMEGA Large objects
HAIL
ICEBERG
SNOWMAN
BLIZZARD
IGOR Cold
BROMPTON
ROOKWOOD
HIGHGATE
OHLSDORF
BONAVENTURE
OKUNOIN
CALVARY
MOTORIC Cemeteries
SQUALL
HURRICANE
STORM
BREEZE
CYCLONE
ACORN Winds
VIBRIO
ESCHERICHIA
SALMONELLA
BACILLUS
CLOSTRIDIUM
CHLAMYDIA
STAPHYLOCCOCUS
ICEBOAT Bacteria

After identifying the theme and the extracted words, we can notice that the flavor text says there are many “scary things” in the house. This means that all of the answers, and by extension their theme, might be found to be scary. This clues us to find out who is scared of each of these things. In particular, we want to find the name for each of these fears, a word with suffix -phobia.

Answer Theme Name (-phobia) Extracted letter
DORA Radioactivity RADIO I
NODED Trees DENDRO R
GAMMA (NATO) Alphabet GRAMMA R
ROB Gravity BARO A
PYRO Irregular holes TRYPO T
NOTHHELM Worms HELMINTHO I
CRUSTAL Small spaces CLAUSTRO O
COY Dogs CYNO N
ROE Flying AERO A
OMEGA Large objects MEGALO L
IGOR Cold FRIGO F
MOTORIC Cemeteries COIMETRO E
ACORN Winds ANCRAO A
ICEBOAT Bacteria BACTERIO R

We then notice that every answer is an anagram of the name of the associated phobia, except missing a letter. Extracting the missing letters, we obtain the answer IRRATIONAL FEAR.