Complex sentence: He appears in "The Hostile Hospital", assisting Olaf's surgical attempt to murder Violet; he is seen travelling around as part of Olaf's troupe following this also appears in the reptile room disguised as the docter.
Split into simpler sentences: He appears in "The Hostile Hospital", assisting Olaf's surgical attempt to murder Violet; he is seen travelling around as part of Olaf's troupe following this. Also, appears in the reptile room disguised as the docter.