Browse & Search Search forAll formatsAudiobooksBooksLibrary of ThingsMagazinesMusicVideoseAudiobookeBookseLearningeMagazineseMusiceVideosSearch byKeywordAuthorSeriesSubjectTitleEnter a search termClear searchUse the classic catalogFilter by: Format Library Availability Material Type Material Type Close Filter the search results by Material Type. Adult Book (1)Juvenile Book (1) Library Availability Close Filter the search results by Library Availability. Central Library (1)Oshtemo Branch (1)Show only AVAILABLE titles Format Close Filter the search results by Format. eBook (6)Books (2) Book Defending your castle : build catapults,… [2014] William Gurstelle Book The art of the catapult : build Greek ballistae,… [2004] William Gurstelle eBook hoopla Defending Your Castle [2014] William Gurstelle eBook hoopla Absinthe & Flamethrowers [2009] William Gurstelle eBook hoopla The Practical Pyromaniac [2011] William Gurstelle eBook hoopla Ready the Cannons! [2016] William Gurstelle eBook hoopla Backyard Ballistics [2012] William Gurstelle eBook hoopla Whoosh Boom Splat [2017] William Gurstelle Suggest an Item Search MeLCat