Triplets combines Crane’s three books, The Baby’s Opera (1877), The Baby’s Bouquêt (1878) and The Baby’s Own Aesop (1887) in one volume, printed in a limited edition of 500 copies in the United Kingdom and 250 copies in the United States. For the publication of this edition Crane wrote; “The Babies who were present when The Baby’s Opera had its first season have all grown up, but perhaps the thrilling scene is still remembered . . . Let the first Baby pipe the old tunes again while the others dance, . . . or while that infant Aesop, who is knocking at the door, brings his wise saws and moral reflections up to date.”