侦探歌剧 少女福尔摩斯 Alternative TWO

London is in high spirits during the Thames River Festival. Milky Holmes and the others are thoroughly enjoying their holiday in London together with Lily. Kokoro, who had stayed home pondering the meaning of the words left behind by the phantom thief in the recent incident, manages to unravel a part of the hidden mystery upon hearing the name of Lily's great-grandmother mentioned by Lily upon her return. At the same time, an incident occurs where the treasured artifact "Widow's Egg" is stolen from the British Museum. What Milky Holmes, Lily, and Kokoro witness when they rush to the scene...