The doctor looks at literature

book is Homer's immortal poem. If M. Larbaud has the key he cannot

spring the lock of the door of the dark safe in which “Ulysses” rests, metaphorically, for most readers. At least he has not done so up to this writing.

The key is to be found in the antepenultimate chapter of the book; and it isn't a key, it's a combination, a countryman of Mr. Joyce's might say...