Kendra and Seth are dropped off at their grandparents' estate while their parents leave on a cruise.

Grandpa Sorenson warns the children to stay out of the woods, citing the danger of ticks.

Seth sneaks into the forbidden woods and encounters a witch named Muriel inside an ivy-covered shack.

Seth leads Kendra into the woods to reveal a hidden pond with a tiny island at its center.

Kendra and Seth drink the magical milk and discover the garden bugs are actually fairies.

Grandpa reveals the truth about Fablehaven and explains the rules of magical mutual respect.

Seth traps a fairy in a mason jar overnight, and she transforms into a malicious imp by morning.

The fairies retaliate against Seth for imprisoning one of their own, transforming him into a monstrous creature.

Grandpa Sorenson loosens one of Muriel's imprisoning knots so she will reverse Seth's transformation.

Seth is tricked into opening the attic window on Midsummer Eve, allowing dark creatures inside the house.

The morning after Midsummer Eve reveals the house destroyed, Dale turned to stone, and Grandpa and Lena missing.

Kendra and Seth free Muriel from her last knot, and she transforms Grandma Sorenson back from chicken form.

The group finds Grandpa and Lena at the Forgotten Chapel, but Grandma and Seth are captured in the fight.

Kendra reaches the Fairy Queen's island shrine and receives a formula for a potion to transform fairies into warriors.

The fairy army defeats Muriel, imprisons Bahumat, and rescues the entire family from the Forgotten Chapel.

Kendra and Seth arrive at their grandparents' estate and soon uncover that Fablehaven is a magical preserve for mythical creatures. After drinking enchanted milk, the children can see the fairies and other magical beings living on the land. Seth's reckless capture of a fairy triggers a chain of events that leaves him transformed and forces Grandpa to weaken the witch Muriel's imprisonment. When Seth opens the attic window on Midsummer Eve, dark creatures invade and kidnap Grandpa Sorenson and Lena. The children must free Muriel to restore their grandmother, then race to the Forgotten Chapel to confront the witch and a demon named Bahumat. Kendra's pure heart allows her to summon the Fairy Queen's aid, and a fairy army defeats the dark forces and saves the family.

The core story of Fablehaven's discovery and defense.

Grandpa Sorenson gives Kendra three tiny keys and tells her each one unlocks something in the attic.

Kendra watches Dale secretly place a pan of milk behind a hedge at the edge of the garden.

Seth returns from his first walk in the woods and describes the frightening woman in the shack to Kendra.

Grandpa admits he lied about the ticks, reveals magical creatures live on the land, and negotiates a lighter punishment.

Lena reveals she was once a naiad who left her pond after falling in love with a mortal caretaker.

Maddox the fairy salesman visits and warns everyone about the return of the Society of the Evening Star.

Grandpa reveals he left the Journal of Secrets and the keys as a test of the children's character.

Midsummer Eve begins earlier than expected, confirming the adults' fears that this night will be especially chaotic.

Dale introduces Seth to Hugo, a golem made of earth who handles heavy work around the farm.

Kendra and Seth stumble upon an ogress's chimney while searching the grounds and are chased after stealing her stew.

Two satyrs rescue Kendra and Seth from the ogress but refuse to help when they learn Grandpa is missing.

Kendra and Seth discover Viola the giant cow in the barn and work together to relieve her painful udders.

Seth disobeys Grandma and climbs the poles leading to Nero's cliff cave himself, winning entry for the group.

Grandma bargains a lengthy group massage in exchange for Nero the cliff troll using his seeing stone.

Kendra wakes from a two-day sleep and discovers she can now see magical creatures without drinking any milk.

Kendra and Seth's stay at Fablehaven is filled with small discoveries that slowly reveal the true nature of the preserve. Early hints—three mysterious keys, secretly placed milk, and a fairy salesman's warning about the Society of the Evening Star—build a picture of a hidden magical world. After Midsummer Eve unleashes chaos, the children must navigate dangerous creatures, from a hungry ogress to a demanding cliff troll named Nero, to gather information and resources. Along the way they meet Hugo the golem, learn Lena's extraordinary history, and uncover secrets that arm them for the fight ahead. The quest leads through bargains, narrow escapes, and hard work before the final battle can be won. In the aftermath, Kendra emerges permanently changed, her perception of magic now a part of who she is.

The clues, characters, and challenges that shaped the journey.

The garden insects swarm around Kendra's hand mirror, hinting that the bugs on the property are far from ordinary.

Kendra finds the hidden message 'drink the milk' written in tiny letters inside the Journal of Secrets.

Grandpa confirms the woman Seth found in the woods is Muriel Taggert, a mortal imprisoned for dabbling in dark magic.

Lena explains to Kendra how naiads perceive the world differently, including their indifference to human mortality.

Lena warns Kendra about Midsummer Eve and assures her the house will keep the children safe that night.

Seth stores a trapped fairy inside a dresser drawer overnight despite her desperate, terrified protests.

Seth opens the dresser drawer and discovers the captive fairy has transformed into a vicious imp overnight.

The Fablehaven inhabitants carve jack-o'-lanterns together to serve as fairy-guarded protection on Midsummer Eve.

Goldilocks the chicken spells out 'IM GRAM' in corn kernels, revealing she is actually Grandma Sorenson.

Restored to human form, Grandma Sorenson watches Muriel immediately break her word and escape into the preserve.

Grandma Sorenson reveals that Bahumat, an ancient demon, has been imprisoned in the Forgotten Chapel's basement.

Grandma explains that dark creatures cannot harm Kendra because she has committed no mischief or harm on the preserve.

Fleeing the Forgotten Chapel alone and terrified, Kendra decides to risk visiting the Fairy Queen's shrine on the island.

Kendra removes Mendigo's arms and lets the naiads pull him under, committing her first intentional act of mischief.

Kendra and Grandpa visit the naiad pond to say goodbye to Lena, who no longer recognizes Kendra at all.

Pool 3 traces the key revelations and turning-point decisions that drive Kendra and Seth's growth throughout Fablehaven. From the earliest hints that the garden insects are magical, through Seth's fateful choice to imprison a fairy overnight, and the discovery that their grandmother has been a chicken all along, each revelation raises the stakes and forces the children to act. The night before the final crisis, Grandma arms the children with knowledge about Bahumat and the unique protection Kendra's good conduct provides. When Kendra flees the Forgotten Chapel alone, her decision to risk everything by seeking the Fairy Queen marks her transformation from cautious rule-follower to courageous leader. The pool closes on a bittersweet note as Kendra says goodbye to Lena, who has returned to the naiad pond and no longer recognizes the girl she befriended.