Mostly letters from periods in which Mervyn and Maeve were apart, either due to travel or Mervyn's various stays in hospital. Also includes two poems and a valentine.
Letters from the Secretary of the Lewis Carroll Society regarding Peake's illustrations of Carroll's work. Sibley later adapted the Titus books for radio and became Editor of the Mervyn Peake Review.
Letters of appreciation for Maeve Gilmore's memoir of Mervyn Peake. For manuscripts, typescripts and letters concerning permission to publish A World Away see Add MS 88931/13/1/3.