How does the author use foreshadowing in Hornblower During the Crisis?

Chapter One provides heavy foreshadowing of several elements of the narrative.
First, Meadows is perfunctory in relieving Hornblower and assuming command. This
casual dismissal of Hornblower does not bode well and indicates Meadows will not be successful in the immediate future. He should seek to gain knowledge from Hornblower rather than seeking to present an effected, infallible façade to the crew. Second, Hornblower is immensely relieved to be free of the responsibility for conning Hotspur throughout the area it must often patrol. This contrasts sharply with Hornblower's regret at leaving command—obviously, the most difficult aspect, by far, of his command has been keeping Hotspur off the bottom amid the shoaling and dangerous waters of the approach to Brest. Meadows' willful ignorance of the danger combined with Hornblower's evident relief, foreshadow Hotspur's imminent danger.