The masquerade party at the Hendrick's mansion quickly turns into a mystery when Nancy and her favorite date, Ned Nickerson, spy a stranger about to climb the rose trellis to the second story. Who is this enigmatic man in the black cloak and the exotic woman in the Javenese costume? Are they members of the gang of wily thieves who sneak into parties given by wealthy people and steal jewels and art treasures? And why is the owner of the black velvet hooded mask that Ned finds in the Hendricks' garden so desperate to get it back?

To find the answers Nancy and her friend George Fayne devise a daring plan. The two girls switch identities! George soon discovers that while it is exciting to play amateur detective it can be dangerous to masquerade as Nancy Drew.

. (Ex-Library book with usual marking - inside front & back covers stamped "Obsolete & Discarded by Grants Municipal Schools") Fading on booik cover, shelf wear.This edition copyrighted 1969. 177 pages.

 Grosset & Dunlap 0448195305 / 9780448195308
Hard Cover Good Condition No Book jacket as Published This Edition out of Print 

Price: 14.70 USD

Their first stop is an aviary, a place filled with lots of birds, including Carmen, a beautiful hyacinth macaw from South America.

But when Todd Steckler holds a creepy jar of beetles in Bess's face, she screams -- and Carmen flies the coop! Now the girls have to find Carmen before she's bird-napped. If they track down the bird, they'll be made Junior Park Rangers, but if they don't, they'll be three very unhappy campers!

 Aladdin 0-671-02785-9 / 9780671027858
Paperback very good condition 

Price: 19.55 USD

But when Todd Steckler holds a creepy jar of beetles in Bess's face, she screams -- and Carmen flies the coop! Now the girls have to find Carmen before she's bird-napped. If they track down the bird, they'll be made Junior Park Rangers, but if they don't, they'll be three very unhappy campers!

 Aladdin 0-671-02785-9 / 9780671027858
Paperback Very Good Condition 

Price: 10.00 USD