“I should just think I do,” said Bob, with a hoarse laugh. “Me and two more boys put a lighted cracker in last fift’ o’ November.”

“I want you to go there last thing,” said Dexter, as he could not help wondering whether the cracker made a great deal of noise in the letter-box; “and to drop the packet in just as if it was a letter. I mean just before you come.”

“But what for?”

“Because it must be taken there. I want it taken.”

“O very well. Where is it?”

“Here,” said Dexter, taking out his carefully tied and sealed packet.

“Chuck it across.”

“Get up, then, and be ready to catch it.”

“All right! Now then, shy away.”

Dexter drew back from the river, and aiming carefully at where he could see Bob’s dim figure, he measured the distance with his eye, and threw.