Nancy Drew TWIN THRILLERS  by Carolyn Keene.

The TWIN THRILLER book club editions were introduced in the 1970's by Grosset & Dunlap. They featured 2 stories in 1 book. The covers are lavendar/grey colored pictorial hardbacks with solid color on the back. The endpapers are white and black multi-scene.

• 29/30: The Mystery at the Ski Jump/The Clue of the Velvet Mask
• 41/42: The Clue of the Whistling Bagpipes/The Phantom of Pine Hill

These books are in very good condition. The covers have minimal wear. One has a butterfly sticker on the back. The pages are intact and have normal page tanning. A great 2 book start for a collection of this 27 volume series!

Combined shipping discounts on other purchases!