"I wasn't," he complains. "I was just asking about the circumstances."
Meanwhile, owl-less, Severus closes his eyes, and a silvery form begins to swirl in the air in front of him, coiling for a few moments before it psuedo-solidifies and vanishes. Then he walks down to the shore, sits next to the prone and gasping figure, and hands him a crisp white handkerchief. "If there isn't an owl soon, I'll take you to the local pub."
The quetzalcoatl patronus makes knocking sounds before slipping through the molecules of the door Lucius is behind, and says in Severus's voice, "Forgive the method of delivery; I'm low on options. An old friend has turned up on the beach and I thought not to feed him first from Minerva's kitchen. Please owl to say whether I may bring him to visit."