Cadenus & Swift's Most Valuable Friend, Hardcover by Brocquy, Sybil Le; Brocquy, Louis Le (ILT), ISBN 1843510332, ISBN-13 9781843510338, Brand New, Free shipping in the US

"Cadenus" is primarily concerned with the relationship between Swift and Vanessa (Esther Van Homrigh), "Swift's Most Valuable Friend" with that between Swift and Stella (Esther Johnson). Both help to determine the precise nature of this triangle, and the impact it had on his writing and career.