Detective Comics, Vol. 1

"The House That Haunted Batman" - Batman is tracking Robin's kidnapper, and finds himself in a house filled with impossibilities. How long can he continue without questioning his sanity?

"Batgirl vs. the Phantom Bullfighter" - Batgirl is in Spain, learning about the bullfights from a master. Soon the bullfighter and Barbara are invited to the same estate, where the bull he intended to fight is murdered.