"Come on," he cried. "We must find the kitchen. That canary will know where the matches are kept. Find the kitchen!"

Then the two of them went stumbling around in the darkness, feeling the walls, and presently they came upon a low door, opened it and fell headlong down a short flight of steps that led to the lighthouse kitchen. This was a little underground room, like a cellar, cut out of the rock on which the lighthouse stood. If there was any fire or stove in it it had long since gone out, for the darkness here was as black as anywhere else. But as soon as the door had opened, the trills of the song bird grew louder.

"Tell me," called John Dolittle, in canary language, "where are the matches? Quick!"

"Oh, at last you've come," said a high, small, polite voice out of the darkness. "Would you mind putting a cover over my cage? There's a draught and I can't sleep. Nobody's been near me since midday. I don't know what can have happened to the keeper. He always covers up my cage at tea-time. But to-night I wasn't covered at all, so I went on singing. You'll find my cover up on the——"

"Matches! Matches! Where are the matches?" screamed Dab-Dab. "The light's out and there's a ship in danger! Where are the matches kept?"

"On the mantelpiece, next to the pepper box," said the canary. "Come over here to my cage and feel along to your left—high up—and your hand will fall right on them."

The Doctor sprang across the room, upsetting a chair on his way, and felt along the wall. His hand touched the corner of a stone shelf and the next moment Dab-Dab gave a deep sigh of relief, for she heard the cheerful rattle of a box of matches as the Doctor fumbled to strike a light.

"You'll find a candle on the table—there—look—behind you," said the canary, when the match light dimly lit up the kitchen.

With trembling fingers the Doctor lit the candle. Then, shielding the flame with his hand, he bounded out of the room and up the stairs.