At this stage of Goodbye Deponia, Switch to the red Rufus. Take the children's handset (by the wheelchair) from Mr. and Mrs. Bozo's house. Go to and talk to Toni, sitting in a tank - she has undergone a change of personality and as a result of the therapy she has become unusually calm, so it is time to restore her to her former state. Click on the toy CB radio handset. Give the earpiece to the green Rufus, and stay in the cockpit as the red Rufus. Use the handset (green Rufus) to connect to Toni. The poor girl will panic at the sight of two Rufuses and run to the therapist.
Return to the red Rufus and head towards the therapist's office. It will turn out to be closed (session in progress), so enter the publisher. Take the metal key with the inscription Yrk from the letterbox. Now go to the rope shop (from the market: upper entrance on the right). Take leaflet from the counter. The sternus will make a plane out of it, encumber it with a metal letter. Throw the encumbered aircraft towards the office.