Instead of taking the occupants of Rainbow Island unawares they were startled at being greeted by a shot the moment they landed.

The alarmed savages at once retaliated by firing their antiquated weapons point-blank at the trees, thus giving warning enough to wake the Seven Sleepers.
Iris, fully dressed, was out in a moment.
"They have come!" she whispered.
"Yes," was the cheery answer, for Jenks face to face with danger was a very different man to Jenks wrestling with the insidious attacks of Cupid.

"Up the ladder! Be lively! They will not be here for half an hour if they kick up such a row at the first difficulty.

Still, we will take no risks.

Cast down those spare lines when you reach the top and haul away when I say 'Ready!' You will find everything to hand up there." He held the bottom of the ladder to steady it for the girl's climb.
Soon her voice fell, like a message from a star-- "All right! Please join me soon!" The coiled-up ropes dropped along the face of the rock.