by Maiya Williams (Book 1, "Time Travel")
"Thirteen-year-old Rowan and his eleven-year-old sister Nina, still bereft by the death of their mother theyear before, experience an unusual adventure through time when they come to stay with their two eccentric great-aunts in a small town on the Maine coast." - NoveList
Series: Book 1, "Time Travel"
Hatchet by Gary Paulsen
Green Thumb by Rob Thomas
The Red Necklace by Sally Gardner