Did Robert Langdon appear in three different Dan Brown books?
Yes
Yes
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
No
No, No, No, No
Yes, No, Yes, Yes
No, No, No, No,
No, No, No, Yes
Yes, No, Yes, No
Yes, No, No, Yes
Yes, No, No, No
YYYYYYY
No, No, No, No
Isn't Robert Langdon
No, No, No and Yes
No, No, No
YYYYYY
Yes, No, Yes, Yes
YYYYYYY
No, No, No, No,
Is he one of the three
Yes/No/Yes/Yes
Yes, No, Yes
Is it a single book
No, No, No,
Is Robert Langdon
YYYYYY Yes
No, No, No, Yes
YYYYYY
Yes, No, Yes, No
Yes, No, No, No
Yes, No, No, Yes
YYYYYYY
No, No, No, 0
Is it a single book
YYYYY
Yes, No, No
Yes/No/Yes/Yes
No, No, No, No
Yes/No/Yes/No
Yes, No, No,
YYYYYY Yes
Is Robert Langdon
D'Agostino
YYYYYY
Selected, The Dark Knight Rises
No, No, Yes
No, No, No
Do they appear in three of these novels
No, No, No and Yes
Is Robert Langdon No
Do they appear in three of these books
Is it a single book
YYYYY
YYYYYYY
Isn't it
Do they appear in three of the novels
And I'll Find You in Paris
YES
Yes, No, and Yes
Isn't he?
Do they appear in 3 of these novels
Yes, No, Yes, Yes
Do they appear in 3 of these books
Is Robert Langdon
Isn't he
Do they appear in two of the novels
Isn't that enough?
YYYY
Yes/No/Yes/No
Yes/No/Yes Yes/No
Yes, No, Yes
D'Agostini
Do they appear in two of the books
Aye Robert Langdon
D'Artagnan
Yes/No/Yes/Yes Yes
Yes/No/Yes/Yes
YYYY Yes
YYYYYY
No, No, No,
Isn't it?
Did Robert Langdon appear in 3
Is he one of the three
YYYYY
YES
Yes, No and Yes
Y Yes
YYYY No
Did Robert Langdon appear in two
Is he one of them
Yes/No/Yes/Yes No
Did Robert Langdon appear in 2
Yes, No, No, No
Ayes, yes, yes, yes
Did Robert Langdon appear in three
And I'm Still Waiting
Did Robert Langdon
Is it a mystery
YYYY
Is Robert Langdon No
And I'm Going to Get You
No, Yes, Yes
Is it a coincidence
Yes/No/Yes Yes/No
YYYYYY Yes
Yes, No, No
YYYYYYY
Do they appear in three of them
Do they appear in three of these novels
Yes/No/ Yes/No
Is it a single book
Yes/No/Yes Yes/Yes
YYYY Yes
Do they appear in three of these books
Aye Robert Langdon
YES
Is Robert Langdon
Do they appear in two of them
Selected, The Dark Knight Returns
Yes/No/Yes/Yes Yes
YYYYY
YYYY No
Is Robert Langdon in 3
YYYYYY
Do they appear in three of the novels
No, Yes, No
Do they appear in 3 of them
No, No, No
Do they appear in 3 of these novels
Y Yes
Do they appear in 3 of these books
Yes/No/Yes/No
No, No, Yes
Is this the case?
Isn't a No
Is it a mystery
YYYY
Yes/No/Yes/Yes No
Do they appear in two of the novels
Is Robert Langdon No
Is he in two of them
Is Robert Langdon a
YYYYYYY
Is it a single book
Yes/No/Yes Yes/Yes
Yes, No
Yes/No/ Yes/Yes
YYYY Yes
YES
Is he one of them?
Do they appear in three of these
Did Robert Langdon appear in both
Isn't that enough
And I'm Going to Die
Is he portrayed in 3
Yes/No/ Yes/No
Yes/No/Yes Yes/No
Is he one of those books
Ayes, yes, yes, Yes
YYYY No
Is Robert Langdon
Yes/No/Yes/Yes.
Isn't