“Don’t you dare even to sneeze,” ordered Jack at once, his voice very low but very fierce.

So Paul swallowed his choking fit and went purple in the face. The girls couldn’t bear the smell either, but they buried their faces deeper in the rug and said nothing.

A man’s voice floated up to the cockpit, speaking in broken English.

“You have how many passengers, please?” he asked.

“You see me and my companion here,” answered Pilescu shortly.

The man seemed satisfied, and walked round the plane admiring it. Pilescu took no notice of him, but began to look carefully into the engines of the plane. He noticed something was wrong and shouted to Ranni.

“Come down here a minute and give me a hand.” Ranni stepped down the ladder and went to stand beside Pilescu. As quick as lightning one of the airfield men skipped up the ladder to the cockpit and peered inside the plane.

It so happened that Mike was peeping out to see if all was clear at that moment. He saw the man before the man saw him, and covered his face again, nudging the others to keep perfectly still.

Ranni saw that the man had gone up to the cockpit and he shouted to him. “Come down! No one is allowed inside our plane without permission.”

“Then you must give me permission,” said the man, whose quick eye had seen the enormous pile of rugs at the back, and who wished to examine it. “We have had news that five children are missing from London, and there is a big reward offered from the King of Baronia if they are found.”