<P> Christopher 's father , Ed , discovers the book and confiscates it after a brief fight with the boy . While searching for the confiscated book , Christopher uncovers a trove of letters which his mother wrote to him , dated after her supposed death , which his father has also hidden . He is so shocked by his father lying about his mother 's death that he is unable to move , curls up on the bed , vomits and groans for several hours until his father returns home . Ed realizes that Christopher has read the letters and cleans him up . He then confesses that he had indeed lied about Judy 's death and also that it was he who killed Wellington , stating that it was a mistake resulting from his anger after a heated argument with Mrs Shears . Christopher , having lost all trust in his father and fearing that Ed might try to kill him since he had already killed the dog , decides to live with his mother and runs away . He remembers his mother 's address from the letters and embarks on an adventurous trip to London , where his mother lives with Mr Shears . </P>
<P> Christopher 's father , Ed , discovers the book and confiscates it after a brief fight with the boy . While searching for the confiscated book , Christopher uncovers a trove of letters which his mother wrote to him , dated after her supposed death , which his father has also hidden . He is so shocked by his father lying about his mother 's death that he is unable to move , curls up on the bed , vomits and groans for several hours until his father returns home . Ed realizes that Christopher has read the letters and cleans him up . He then confesses that he had indeed lied about Judy 's death and also that it was he who killed Wellington , stating that it was a mistake resulting from his anger after a heated argument with Mrs Shears . Christopher , having lost all trust in his father and fearing that Ed might try to kill him since he had already killed the dog , decides to live with his mother and runs away . He remembers his mother 's address from the letters and embarks on an adventurous trip to London , where his mother lives with Mr Shears . </P>
who killed wellington in the curious incident of the dog in the nighttime
who killed wellington in the curious incident of the dog in the nighttime
Christopher 's father , Ed
Christopher 's father , Ed