Mim (Incongruous Details)

A Mim was trapped in London during World War II. His distress call was received by the Sixth Doctor, who took Emily Chaudhry and Will Hoffman with him to answer the call.

After they spent some time during an air raid in the cellar of the White Rabbit, the Doctor brought the Mim back home to the Mimsphere. (PROSE: Incongruous Details)