"Harriet Wermer investigates more mysteries during her stay on Marble Island"--

"When Silvia and her mother finally land in a place called Island City, after being expelled from their ancestral home in a not-too-distant future, they end up living and working at The Morningside, a crumbling luxury tower where Silvia's aunt, Ena, has been serving as the superintendent. Silvia feels unmoored in her life because her mother has been so diligently secretive about the family's past. But in Ena there is an opening: a person willing to...

"With warm and heart-fluttering illustrations, discover the next nonfiction picture book about butterflies and moths from the creator of the New York Times bestseller Women in Science!"--

Little Blue Engine tries hard and passes her final test for Engine School, but learns that everyone's journey is different and that, sometimes, success requires a little help.

Ms. Frizzle takes her class back through time to the Triassic period on a dinosaur dig in search of Maiasaura eggs.