In Frankenstein, how does Victor become lost at sea?

In Chapter 20 of Mary Shelley's Frankenstein, Victor creates a second female monster; the original monster tracks Victor down at his workshop in Scotland in order to see the woman that has been shaped for him. Victor responds by destroying the unfinished female in front of the monster, destroying the workshop, and rowing a small boat out to sea in the wee hours of the morning to dispose of the female's remains.

Unfortunately, Victor...

In Chapter 20 of Mary Shelley's Frankenstein, Victor creates a second female monster; the original monster tracks Victor down at his workshop in Scotland in order to see the woman that has been shaped for him. Victor responds by destroying the unfinished female in front of the monster, destroying the workshop, and rowing a small boat out to sea in the wee hours of the morning to dispose of the female's remains.

Unfortunately, Victor makes a poor choice and decides to rest in the boat after his dirty task is done rather than row back to shore. He consequently gets pushed out to sea by a storm and is forced to make his clothing into a sail so that he can make his way back to land. When he does get back, he is accused of murder.