Theory:

Meanings of the difficult words from the lesson "Footprints Without Feet":
  
S.No
Words
Meanings
1
Surprise An unexpected or astonishing event
2
ImprintA mark or outline made by pressing something onto a softer substance
3
Bare feetNot wearing any shoes or socks
4
GazeLook steadily and intently, especially in admiration, surprise, or thought
   5Remarkable Unusual and surprising
6
Sight The ability to see
7
Footmark A footprint
8
NowhereNot in or to any place; not anywhere
9
Disappear To no longer exist
10
Mystery Something strange or not known that has not yet been explained or understood
11
TransparentClear and easy to understand or recognize
12
Bewilder Confused and uncertain
13
ScientistAn expert who studies or works in one of the sciences
14
InvisibleImpossible to see
15
Swallow Cause or allow something, especially food or drink to pass down the throat
16
Rare Not common or frequent; very unusual
17
DrugAny natural or artificially made chemical that is used as a medicine
18
Discover To find information, a place, or an object, especially for the first time
19
Impression A mark made on the surface of something by pressing an object onto it
20
Lawless manDoing activities against the law or doing illegal activities
21
Landlord A man who rents out the land, a building, or accommodation
22
DislikeTo not like someone or something
23
Eject To force someone to leave a particular place
24
Garment A piece of clothing
25
Homeless Without a home
26
WandererSomeone who often travels from place to place, especially without any clear aim or purpose
27
Adventure An unusual and exciting or daring experience
28
Wander Walk or move in a leisurely or aimless way
29
BrimThe bottom part of a hat that sticks out all around the head
30
WrapperA piece of paper, plastic, or other material that covers and protects something
31
Overcoat A long thick coat was worn in cold weather
32
Grocery A store that sells food and small things for the home
33
PanicA sudden strong feeling of fear that prevents reasonable thought and action
34
Naked Not covered by clothes
35
BandageA strip of woven material used to bind up a wound or to protect an injured part of the body
36
Shiver Shaking slightly and uncontrollably due to being cold, frightened, or excited
37
WhiskerThe hair growing on a man's face, especially the sides and/or the lower part of the chin
38
Shopkeeper A person who owns and manages a small shop
39
Village A group of houses and other buildings that is smaller than a town, usually in the countryside
40
CrowdA large number of people gathered together in a disorganized or unruly way
41
InnA small hotel, usually in the countryside
42
Stranger A person whom one does not know or with whom one is not familiar
43
Unusual Different from what is usual or expected
44
EventAnything that happens, especially something important or unusual
45
Uncommon Out of the ordinary or unusual
46
Appearance The way that someone or something looks
47
Tongues waggingTalking a lot about something
48
SolitudeThe state or situation of being alone
49
Eccentric Of a person or their behaviour unconventional and slightly strange 
50
Guest A person staying at a hotel or guesthouse
51
TemperA person's state of mind seen in terms of their being angry or calm
52
Curious Eager to know or learn something
53
Episode A single event or group of related events
54
PretendTo behave as if something is true when you know that it is not, especially to deceive people or as a game
55
Chink A short sharp sound
56
GraspSeize and hold firmly
57
Flung Move or push something suddenly or violently
58
CurtainA piece of material, especially cloth, that hangs across a window or opening to make a room or part of a room dark or private 
59
Chimney A hollow structure that allows the smoke from a fire inside a building to escape to the air outside 
60
Unconscious Not conscious
61
Peep To secretly look at something for a short time, usually through a hole 
62
Opportunity  A time or set of circumstances that makes it possible to do something 
63
Investigate To examine something carefully, esp. to discover the truth about it 
64
SuspectTo think that someone has committed a crime or done something wrong
65
Bedpost One of the four corner poles that support a bed
66
DashTo go somewhere quickly
67
HystericsUncontrolled behaviour or crying, usually caused by extreme fear or sadness
68
HauntOf a ghost manifest itself at a place regularly
69
Burglary Illegal entry of a building with the intent to commit a crime, especially theft
70
NeighbourA person living next door to or very near to the speaker or person referred to
71
WitchcraftThe practice of magic, especially black magic; the use of spells
72
Constable A British police officer of the lowest rank
73
FuriousExtremely angry
74
Headless Without a head