Mallory and Claudia are helping Stacey unpack from her move back to Stoneybrook when they find an antique trunk in the McGills' attic. Stacey doesn't want the dusty thing, so she gives the trunk to Mallory... who finds an old diary in the bottom of it. The diary once belonged to Sophie, a girl who lived in Stacey's house in the 1890s. As Mallory reads deep into Sophie's diary, she discovers …
Gabriel de Leon has saved the Holy Grail from death, but his chance to end the endless night is lost.
Big changes are in store for Greg Heffley and his family. They are making home improvements! But with unwelcome critters, toxic mould and the walls coming down, soon Greg discovers renovations aren't all they're cracked up to be. When the dust finally settles, will the Heffleys be able to stay... or will they need to get out of town?