From An Unknown Sender Book

From an Unknown Sender

After spending a busy holiday season putting drug smugglers behind bars, CIA operative Cole Bridger is looking forward to spending a quiet Christmas in Vienna with his girlfriend and fellow operative, Isabelle Roberts. But when Isabelle is tasked with investigating a string of suspect financial transactions and redirects a suspicious package to a museum in Amsterdam, she inadvertently places Cole's cousins in the cross hairs of a drug smuggling ring. Lars and Marit have no desire to be drawn into the deadly dealings of the criminal underworld, but when Lars's sister, Tess's, life is placed in danger, they willingly join Cole and Isabelle in their efforts to uncover the mastermind behind the drug smuggling ring.

So Easy to Use-- the Internet

The Missionary Guardian