Blair's nightmare / Zilpha Keatley Snyder.

"A giant Irish wolfhound might be the dog of David's dreams in the third book in the Stanley Family series, a companion to The Headless Cupid, from three-time Newbery Honor winner Zipha Keatley Snyder. With five children, a raven, and a pet turkey named King Tut, the Stanley house is full-to-bursting. But David desperately wants a dog--even though his dad has forbidden another pet. So when Blair begins sleepwalking and having dreams of an enormou...