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Due to the show’s immense popularity, the Hammond Castle Museum has added an additional performance of The Horror of Abbadia Mare on Friday, November 6. Find tickets here.

This Halloween season Hammond Castle Museum will offer a room-to-room theatre performance of The Horror of Abbadia Mare, an adaptation of five H.P. Lovecraft stories set within the castle and adapted around one of America’s most prolific inventors of his time, John Hays Hammond Jr. The Horror-Fan culture will recognize many of the elements of H.P. Lovecraft stories woven together with catastrophic results of Hammond’s insatiable curiosity and research at the archives of Miskatonic University into his family’s dark past.

The five adaptations include Lovecraft’s Dunwich HorrorDreams in the Witch House, The HoundThe Color Out of Space, and From Beyond. Set in the fall of 1929, Hammond falls prey to his genealogy which was cursed nearly four centuries ago. As guests move through the inner rooms of the castle they come upon various members of the Hammond household and are drawn into a story of frantic and tragic happenings within the Castle’s walls.

Performances begin at 6 p.m. and run every 15 minutes through 9 p.m. on Friday, October 9, 16, 23, and 30, and on Sunday, October 11. Performances are limited to eight audience members at a time. Each story is approximately eight to 10 minutes long and the program runs 60 minutes in total. This program is appropriate for children ages 13 years and older. Tickets are $25 each. Advance ticket purchase is required, and tickets may be purchased at

Hammond Castle Museum has stood on the rocky shores of Gloucester’s coastline for nearly 100 years and is the perfect backdrop for stories set right in Lovecraft Country, better known as Essex County. The site-specific adaptation was conceptualized by Creative Director and Curator Scott Cordiner and Tour Director Faith Palermo to incorporate many aspects of Hammond Castle and actual pieces of the museum’s archives. 

Photograph courtesy of Hammond Castle Museum

“H. P. Lovecraft and a number of his stories have an essence which connects science with horror with otherworldliness. We peer into an abyss which bridges the arcane past with the mystery of other dimensions. Hammond sought a bridge between the past, present, and future through his museum, which housed ancient medieval artifacts, and an adjoining laboratory, which sought to invent the future,” says Cordiner.

Hammond Castle Museum is retiring the Halls of Darkness in consideration for COVID-19 health and safety guidelines as set for by the City of Gloucester and Massachusetts.

Howard Phillips Lovecraft is widely regarded as the most influential horror writers of his time and the father of “modern horror.” Lovecraft is best known for the creation of “Cthulhu Mythos,” a collection of tales that loosely link the various subhuman entities and supernatural beings that Lovecraft created. Lovecraft’s first cosmic horror novel was published in 1928, although his work did not receive notoriety until several years after his death in 1937. 

His body of work is said to have inspired horror writers including Stephen King, Peter Straub, and Neil Gaiman. His stories have a dedicated following of cosmic horror fans, have influenced numerous movies, and are the basis of HBO’s current television drama series Lovecraft Country. In recent years, and particularly in accordance with HBO’s new series Lovecraft Country, Lovecraft’s appallingly racist beliefs have come into the spotlight, sparking meaningful conversations—check out these articles on Lovecraft from the LA Times or The Atlantic to learn more.

John Hays Hammond Jr., known as “The Father of Radio Control,” was one of America’s most prolific inventors and a protégé of Guglielmo Marconi, Nikola Tesla, Thomas Edison, and Alexander Graham Bell. Built from 1926 through 1929, and incorporated as a museum in 1930, the Castle’s architectural style is a mix of a medieval castle, French chateau, and a Gothic cathedral. It was custom built to encompass Hammond’s private residence, laboratory, and museum quality collection of architectural elements such as the facades of medieval shops and doorways from chateaus. Also on display is Hammond’s extensive list of patents, his work with radio control, and his work on guided torpedoes for the military.

Hammond Castle Museum is a 501(c)(3) non-profit organization and is listed on the National Register of Historic Places. It is not handicapped accessible. The museum offers guided tours and numerous educational and cultural events throughout the year. It is also available as a wedding and private events venue. For more information, contact Hammond Castle Museum at, 978-283-2080 or