He secretly travels to Colorado, switching identities along the way.

That's why you travel so secretly, with so many passports.

Subsequently, other Americans secretly traveled abroad to arrange the shipments.

From here the books traveled secretly to the communist homeland.

Viola learns that the play will be performed on her wedding day, and after the ceremony secretly travels to the theatre.

The troops traveled secretly at night to avoid an expected ambush.

Take for example a scenario where an official is travelling secretly and only one of his aides knows the specific travel plans.

It seems that he travelled secretly in order to avoid just such a possibility as has happened.

Nor could we travel secretly for any distance at all: we had no tent, no food, and not much strength.

Later he secretly travelled to İstanbul to have a voice on the coming interregnum.