Mrs. Phillips announces she is leaving to return to England, and William vows he will not let her go.

Mrs. Phillips leads William to the attic and presents the enormous toy castle as her going-away gift to him.

The Silver Knight stirs to life in William's hand and introduces himself as Sir Simon of Hargrave.

Sir Simon tells William how the wizard Alastor used magic medallions to steal his castle and turn him into lead.

At the bus stop, Sir Simon aims the token at Mrs. Phillips and she shrinks to two inches tall.

Inside the toy castle, Mrs. Phillips refuses to speak to William and will not forgive his betrayal.

Sir Simon uses the medallion to shrink William, who crosses the drawbridge and enters the toy castle.

Sir Simon trains William in sword combat while Mrs. Phillips oversees his gymnastics, chess, and recorder practice.

William and Sir Simon cross the toy castle's drawbridge and find themselves walking through a real medieval landscape.

Sir Simon is lured off the forest path by an illusion of his beloved horse and disappears.

William plays his recorder to silence the enchanted forest's terrifying noises and walks safely to the other side.

Alastor shows William a gallery of leaden victims and reveals he always knew the Silver Knight would return with a boy.

William ends his gymnastic routine with a kick that knocks Alastor down, then seizes the wizard's magic necklace.

Calendar grabs the necklace, aims a medallion at Alastor, and the wizard is turned to lead and vanishes.

William and Mrs. Phillips use the Janus tokens to restore each other to full size, and she boards the bus to England.

This pool follows the central arc of William's story, opening with his beloved nanny Mrs. Phillips announcing her return to England and her gift of the magical toy castle. William discovers the living Silver Knight inside and, in desperation, uses the knight's magic token to trap Mrs. Phillips at tiny size — a decision he immediately regrets. Joining her in the castle, he trains alongside Sir Simon for a quest into the medieval kingdom now ruled by the evil wizard Alastor. After navigating the enchanted forest alone and defeating the dragon guarding the castle gate, William faces Alastor in a climactic battle of wits and athleticism. He steals the wizard's necklace and, with Calendar's help, defeats Alastor at last. William and Mrs. Phillips restore each other to full size, and he says a hard-won farewell as she boards the bus to England.

The core journey from losing a caregiver to winning back a kingdom.

William steals Mrs. Phillips's pearl pin and the photograph of her late husband to prevent her from leaving.

William returns the stolen items to Mrs. Phillips's dresser; she catches him in the act and they share a tearful hug.

Over dinner on the night of the castle gift, Mrs. Phillips tells William the legend of the Silver Knight.

William and Sir Simon search the castle courtyard together and find the stolen magic medallion hidden in the dirt.

William carries food scraps from the kitchen to Sir Simon's table, and the two begin building a daily friendship.

Jason visits the attic to see the castle, but William grows anxious about the secret and rushes him away.

William's father enters the attic to tour the castle and nearly discovers Sir Simon's shield lying near the stable.

Sir Simon miniaturizes a mouse and roasts it contentedly in the castle's kitchen fireplace with William's help.

William's father builds a wooden platform and moat rectangle for the castle; the two install it in the attic together.

William packs his supplies for the journey and says an unusually long goodnight hug to his mother.

Sir Simon dresses William in a squire's tunic and solemnly recites the ancient duties and virtues of a knight.

An old bent man bites the apple William retrieved and transforms instantly into a tall young man named Dick.

William scouts Alastor's hilltop castle through binoculars and watches the dragon breathe fire on everything near the gate.

Alastor forces William to perform exhausting gymnastic routines every day for the wizard's personal entertainment.

A great feast is held after Alastor's defeat, and Sir Simon stands to toast William as their rescuer.

This pool captures the secondary events that give weight and context to William's world, beginning with his scheme to hide Mrs. Phillips's most treasured possessions and the reconciliation that follows when he returns them. We see William's friendship with Sir Simon deepen through daily routines and small acts of caretaking, while his father makes quiet attempts to connect with his son. Jason is shut out of the castle secret, and William's father nearly stumbles onto Sir Simon during an attic visit, raising the stakes of keeping the knight hidden. Preparations for the quest unfold through Sir Simon's formal investiture of William as a squire and the construction of a moat by father and son working together. The journey beyond the castle brings Dick, a man freed from Alastor's curse, who rewards William with vital knowledge. The pool closes with a victorious feast in the liberated kingdom, where Sir Simon honors William before the full community.

The supporting events that shape William's world and prepare him for his quest.

William's mother tells him Mrs. Phillips will leave England even without her treasured items, destroying his plan entirely.

Sir Simon aims the medallion at the sow bugs, says the word Janus, and the insects shrink to near-invisible specks.

Mrs. Phillips sits in the stands at William's gymnastics practice and grins widely when he finally lands the dive roll.

During a chess game, William realizes he could use the medallion to miniaturize Mrs. Phillips and keep her with him forever.

William uses a magnifying glass to read the riddle inscribed above the castle door about the knight, lady, and quest.

Sir Simon tells William that Mrs. Phillips wants him to enter the castle himself and experience what she is going through.

Mrs. Phillips forgives William after he enters the castle at tiny size; they hug and agree to help each other.

Mrs. Phillips changes William's floor routine from a dive roll to a front flip, saying he must use wit rather than strength.

Mrs. Phillips shows William her completed needlework tapestry depicting him and Sir Simon setting out on their journey together.

William helps Sir Simon into full armor; Mrs. Phillips blesses the sword and ties her scarf around the knight's arm.

Dick reveals that Calendar secretly passed along the method for staring down and overpowering the dragon at Alastor's gate.

Calendar secretly tells William that stealing Alastor's necklace and then surviving the truth mirror are the keys to defeating the wizard.

Alastor thrusts the truth mirror at William, but it shows him only what he already knows about himself and has no power.

William embraces Sir Simon's leaden statue; it hugs him back, and the knight is restored to full life.

Sir Simon lovingly embraces Calendar, and she transforms back from a bent crone into her younger, healthier self.

This pool charts the pivotal revelations and turning points that reshape the story at every stage, beginning with the moment William learns his plan to delay Mrs. Phillips cannot work. A chess-game insight leads him to a fateful decision that sets the whole quest in motion, and early discoveries — the wall riddle, the medallion's activation, and a changed gymnastics routine — quietly prepare him for the battle ahead. Mrs. Phillips's forgiveness after William joins her at tiny size is the emotional heart of the story, marking his first true step toward understanding what it means to love someone unselfishly. On the quest, helpers provide critical secrets about the dragon and Alastor's mirror, and William's prior reckoning with his own guilt renders the wizard's ultimate weapon useless against him. The pool closes with the deeply satisfying revivals of Sir Simon and Calendar, whose restorations through touch and embrace mirror the book's central theme of love freeing those we have wronged.

The key decisions, discoveries, and emotional shifts that drive the story forward.