There have been obstacles which prevented our speedy return.

We've done our best." "I can well believe it.

You left on horseback, and you return by air.
But I'm most heartily glad to see all three of you again.

I feared that you were dead." "Thank you, sir," said John.

"But we don't mean to die." "Nevertheless," said Captain Colton, gravely, "death has been all about us for days and nights.