He held the two of them for two years in an abandoned and long dried up well causing damage to both of their minds and also physically altering the white dragon's growth. This was never covered in the story line in the series but was revealed in Season 5 Episode 7 when Arthur meets with him and Guinevere commissions him to kill Arthur for her. ``The Dark Tower'' events altered Gwen's beliefs to see Morgana as her only true and loyal friend causing her to distrust and hate Arthur.
He held the two of them for two years in an abandoned and long dried up well causing damage to both of their minds and also physically altering the white dragon's growth.
nsubj
Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs
he
He
PRON
PRP
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
hold
held
VERB
VBD
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
NumForm=Word|NumType=Card
two
two
NUM
CD
case
of
of
ADP
IN
nmod
Case=Acc|Number=Plur|Person=3|PronType=Prs
they
them
PRON
PRP
case
for
for
ADP
IN
nummod
NumForm=Word|NumType=Card
two
two
NUM
CD
obl
Number=Plur
year
years
NOUN
NNS
case
in
in
ADP
IN
det
Definite=Ind|PronType=Art
a
an
DET
DT
amod
Tense=Past|VerbForm=Part
abandon
abandoned
VERB
VBN
cc
and
and
CCONJ
CC
advmod
Degree=Pos
long
long
ADV
RB
conj
Tense=Past|VerbForm=Part
dry
dried
VERB
VBN
obl
up
up
ADP
RP
advmod
Degree=Pos
well
well
ADV
RB
advcl
VerbForm=Ger
cause
causing
VERB
VBG
obj
Number=Sing
damage
damage
NOUN
NN
case
to
to
ADP
IN
nmod
both
both
DET
DT
case
of
of
ADP
IN
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
nmod
Number=Plur
mind
minds
NOUN
NNS
cc
and
and
CCONJ
CC
advmod
also
also
ADV
RB
advmod
physically
physically
ADV
RB
conj
VerbForm=Ger
alter
altering
VERB
VBG
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
white
white
ADJ
JJ
nmod:poss
Number=Sing
dragon
dragon
NOUN
NN
case
's
's
PART
POS
obj
Number=Sing
growth
growth
NOUN
NN
punct
.
.
PUNCT
.
This was never covered in the story line in the series but was revealed in Season 5 Episode 7 when Arthur meets with him and Guinevere commissions him to kill Arthur for her.
nsubj:pass
Number=Sing|PronType=Dem
this
This
PRON
DT
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
advmod
never
never
ADV
RB
root
Tense=Past|VerbForm=Part|Voice=Pass
cover
covered
VERB
VBN
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
story
story
NOUN
NN
obl
Number=Sing
line
line
NOUN
NN
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
series
series
NOUN
NN
cc
but
but
CCONJ
CC
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
conj
Tense=Past|VerbForm=Part|Voice=Pass
reveal
revealed
VERB
VBN
case
in
in
ADP
IN
obl
Number=Sing
Season
Season
PROPN
NNP
nummod
NumForm=Digit|NumType=Card
5
5
NUM
CD
appos
Number=Sing
Episode
Episode
PROPN
NNP
nummod
NumForm=Digit|NumType=Card
7
7
NUM
CD
advmod
PronType=Int
when
when
ADV
WRB
nsubj
Number=Sing
Arthur
Arthur
PROPN
NNP
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
meet
meets
VERB
VBZ
case
with
with
ADP
IN
obl
Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs
he
him
PRON
PRP
cc
and
and
CCONJ
CC
nsubj
Number=Sing
Guinevere
Guinevere
PROPN
NNP
conj
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
commission
commissions
VERB
VBZ
obj
Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs
he
him
PRON
PRP
mark
to
to
PART
TO
advcl
VerbForm=Inf
kill
kill
VERB
VB
obj
Number=Sing
Arthur
Arthur
PROPN
NNP
case
for
for
ADP
IN
obl
Case=Acc|Gender=Fem|Number=Sing|Person=3|PronType=Prs
her
her
PRON
PRP
punct
.
.
PUNCT
.
``The Dark Tower'' events altered Gwen's beliefs to see Morgana as her only true and loyal friend causing her to distrust and hate Arthur.
punct
``
``
PUNCT
``
det
Definite=Def|PronType=Art
the
The
DET
DT
amod
Degree=Pos
Dark
Dark
ADJ
NNP
compound
Number=Sing
Tower
Tower
PROPN
NNP
punct
''
''
PUNCT
''
nsubj
Number=Plur
event
events
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
alter
altered
VERB
VBD
nmod:poss
Number=Sing
Gwen
Gwen
PROPN
NNP
case
's
's
PART
POS
obj
Number=Plur
belief
beliefs
NOUN
NNS
mark
to
to
PART
TO
advcl
VerbForm=Inf
see
see
VERB
VB
obj
Number=Sing
Morgana
Morgana
PROPN
NNP
case
as
as
ADP
IN
nmod:poss
Case=Gen|Gender=Fem|Number=Sing|Person=3|Poss=Yes|PronType=Prs
her
her
PRON
PRP$
advmod
Degree=Pos
only
only
ADJ
JJ
amod
Degree=Pos
true
true
ADJ
JJ
cc
and
and
CCONJ
CC
conj
Degree=Pos
loyal
loyal
ADJ
JJ
obl
Number=Sing
friend
friend
NOUN
NN
acl
VerbForm=Ger
cause
causing
VERB
VBG
iobj
Case=Acc|Gender=Fem|Number=Sing|Person=3|PronType=Prs
her
her
PRON
PRP
mark
to
to
PART
TO
xcomp
VerbForm=Inf
distrust
distrust
VERB
VB
cc
and
and
CCONJ
CC
conj
VerbForm=Inf
hate
hate
VERB
VB
obj
Number=Sing
Arthur
Arthur
PROPN
NNP
punct
.
.
PUNCT
.