The Young Unicorns
Madeleine L'Engle
 As the story opens, the Austin family has settled in a New York City apartment after the events of The Moon by Night, and made some friends; blind young pianist Emily Gregory and Josiah "Dave" Davidson, who helps Emily get around. Emily is studying under the tutelage of the passionate, leonine Emmanuel Theotocopulous, better known as Mr. Theo. Canon Tallis, newly arrived at the Cathedral of Saint John the Divine after the events of The Arm of the Starfish, meets the Austin children and their friends just as they encounter an anachronistic Genie in a junk shop. Tallis advises and helps to protect the children as they are drawn into a mystery involving the Genie, a street gang called the Alphabats, and the local bishop's strange behavior. Dave is skeptical of the Genie, as is Suzy Austin, but the others are not sure. Centralized, single-minded activity on the part of the criminal Alphabats excites the suspicion of Canon Tallis, who interrogates Dave and Dr. Wallace Austin. Dr. Austin has been working on the creation and perfection of a laser-based Micro-Ray, which is so unerringly precise that it may do more than simply penetrate the corporeal. Dave was once a member of the Alphabats, but has turned from their ways. He is in denial of his past, not even talking about it. Tension builds as the 'Bats try to draw Dave into their new mischief, whose mastermind is none other than the Bishop himself. The Genie appears to be the bishop's servant, and also appears to possess a Micro-Ray. It is revealed that the bishop has given up hope for the world; that he hopes to establish a state of control over humanity, whereby he may prevent anything he deems detrimental to its success. His Genie, Hythloday, uses the Micro-Ray to control the Alphabats. A concentrated beam from it stimulates the brain's pleasure center, giving the victim a feeling of flight. The Alphabats, hoping to receive more of this pleasure as a reward, carry out the bishop's demands. Eventually, Rob Austin is captured. Vicky and Emily track him to the Cathedral, where they are joined by Vicky's family, Canon Tallis, and Mr. Theotocopulous. The united group expose the bishop as his (the bishop's) own brother, actor Henry Grandcourt, in disguise; break apart his plans to seize power; and unmask Hythloday as the dishonest scientist Dr. Hyde. The Micro-Ray is seized. Dave makes his peace with both his past and future, coming eventually to look upon those who have been with him as his family.