Mystery guests will indulge in a “wandering dinner” catered by Jordans in the Performing Arts Center, followed by dancing to the music of Boom, a 60’s and 70’s classic rock band.

Live and silent auctions will feature an array of books, jewelry, spa treatments, tickets to performing arts events, and elegant experiences including a complete weekend at the racetrack in Saratoga Springs, N.Y., with hotels, spas and full racetrack treatment, a country weekend at a restored McKim, Mead and White barn, and dinner provided by a celebrity chef at the Litchfield home of a country gentleman.

There will also be clairvoyant readings in the galleries.

Mask categories are the rich and famous, like Groucho Marx, legendary (Gatsby’s Zelda) and the social set such as a ballerina or an eBay shopper. There are only four masks available of each character and they will be reserved on a first-come, first-served basis.

Early reservations are strongly suggested. Tickets are $110 for members and $125 for non-members.

Call 203-753-0381 extension 10 for more information or visit MattatuckMuseum.org. Tickets can also be purchased in advance at the museum, 144 West Main Street.