An imaginary friend waits a long time to be imagined by a child and given a special name, and finally does the unimaginable--he sets out on a quest to find his perfect match in the real world.

"Jackson and his family have fallen on hard times. There's no more money for rent. And not much for food, either. His parents, his little sister, and their dog may have to live in their minivan. Again. Crenshaw is a cat. He's large, he's outspoken, and he's imaginary. He has come back into Jackson's life to help him. But is an imaginary friend enough to save this family from losing everything?" --

"Dory's sure that her big sister's friendship troubles have to do with pirates, but she'll have to navigate those rocky waters without her imaginary first mate Mary, who's found an exciting new pal of her own"--

A young boy builds a sand castle on the beach and a dragon moves in. The boy and the dragon spend the day at the shore flying a kite, braving the waves, defying bullies, and roasting marshmallows, while the boy's parents remain occupied nearby with their own pastimes. When no one believes the boy's story about the dragon, the creature launches into a mischievous mode and wreaks havoc on everything in its path-- or is it all in the boy's imagination?...

Dory, a highly imaginative youngest child, makes a new friend at school but her brother and sister are sure Rosabelle is imaginary, just like all of Dory's other friends.

The day twelve-year-old Stanly finds a finger bone growing into a skeleton in his yard everything changes--his seven-year-old sister Miren adopts the skeleton, which only children can see, as a friend and playmate, and as her health continues to deteriorate Stanly blames the skeleton and tries to drive it away, although it is the only thing that seems to give Miren any joy.

Nate and his mother are escaping from his emotionally abusive step-father, Gary, but the run-down and abandoned cottage in the woods that his mother takes them to does not seem like much of a refuge; but when his mother goes off to buy provisions and does not come back Nate is left alone (except for his imaginary friend Sam) and afraid -- until a mysterious girl trying to solve the clues of a long-ago treasure hunt turns up.