He soon becomes attached to Andrea while surreptitiously attempting to sell her product. He had noticed that the tombs were being plundered surreptitiously. Sally continues to surreptitiously communicate with Glen, calling him frequently at his boarding school. It can also be caused by hidden programs which were installed surreptitiously, such as spyware. Lucy decides to surreptitiously film her next encounter. Valerian and Laureline recover the converter and surreptitiously steal one of the energy pearls. Nightwing agrees to train Rose, while surreptitiously teaching her the values of heroism. He has the bodies disposed of surreptitiously. He surreptitiously engaged Americans in supporting the Loyalist cause. Alma agreed to remain with Mahler, although the relationship with Gropius continued surreptitiously. The photos were surreptitiously given to DeVasher by Art Germain. They were worn from the 18th century onwards, although at first only surreptitiously. Beaumont agrees, takes the potion, and surreptitiously gives it to Madeleine.