Just a normal introduction and as Kirko says, make darn sure there is no queen in there. Even a virgin running around will have the hive loyalty and cause them to kill your new high dollar queen. Watch how they treat the queen in the cage. If they are biting at the cage, trying to sting her, there is probably someone else in the house. Especially if they are still behaving this way after 3 or 4 days. If they are trying to feed her, touch her, then you are peobably good to go.