Sadleir and Montague Summers demonstrated that they did really exist.

Montague Summers, in his 1924 edition of this work, showed that some details of Manfred of Sicily's real history inspired the novelist.

He responded to an advertisement to work as a secretary for Montague Summers but was warned off by his friends.

Montague Summer.

Malleus Maleficarum - Full text of the 1928 English translation by Montague Summers.

Montague Summers died at his home in Richmond, Surrey in August 1948.

It was edited by Montague Summers and translated as Demonolatry in 1929.

In 1929, Montague Summers republished the story along with the first chapter of Varney the Vampire.

Because of this, revenants have sometimes been described as "vampires" by a number of authors of popular books about vampire legends, starting with Montague Summers.

Montague Summers in the "Physical Phenomenon of Mysticism" speaks of her supernatural ability to survive for long periods without food or water.