Delaney Carter, an agent with the Bureau of Alcohol, Tobacco, Firearms and Explosives, is terrified of flying. When an assignment demands she work undercover as a flight attendant, she must accept or lose a promotion. Retired arms dealer Jack Gordon may be a former gunrunner, and Delaney has less than a week to meet him and find out if he's behind a large shipment of smuggled arms. When Delaney and Jack fall instantly into bed, complications abound. Jack agrees to help her, but both end up in danger. Off Limits (3), by Jordan Summers, is an enjoyable adventure with humor and excitement. But both the setup and relationship are hard to believe. Delaney seems too young and untrained for her job.