Mom said he'd been working on it secretly for a month.

Some are so frustrated they've taken to working secretly at home.

She had meant, working quietly and secretly, to make sure.

Both parties ended their meeting with an agreement to find a way to secretly work together.

For four years he worked secretly, the sole scientist on a $60 million project.

Over the next seven weeks, they worked secretly on legislation to accomplish both goals.

Now we have to work secretly but if it weren't for the repression the Communities would be much bigger.

He secretly works as a member of the Council.

But he also worked secretly with the Polish underground resistance.

From 1852 to 1861 he worked secretly as an informant for the Danish police.