In Harper Lee's To Kill a Mockingbird, in Chapter Six, what does Jem do the night after going to Boo Radley's?

In Harper Lee's To Kill a
Mockingbird, in Chapter Six, Jem, Dill and Scout go to the Radley's house and
are spotted by Mr. Radley, who thinks he sees a burglar and opens fire with a shot
gun.

As the children run away, Scout and Dill are able to
sneak under a fence because Jem holds it up, but his pants get
caught on the fence and he has to leave the pants behind. When the kids casually show up
where the neighbors have gathered, drawn by the gunshot, Jem is in his shorts. When
questioned, Dill and Jem spontaneously come up with a tall tale about playing strip
poker using matches (as cards are strictly forbidden) as the cause for Jem's missing
pants. Atticus tells his son to go get the pants back, and so Jem must sneak back to the
fence, even knowing that Mr. Radley could still be waiting with the shotgun. Jem knows
that if he does not, Mr. Radley will find the pants where he left them, on the fence, in
the morning, and everyone will know the kids were at the Radley's
house. Not only would this be embarrassing, but the three kids have been firmly directed
to stay away from the Radleys by Atticus. Jem expects that this incident would give
Atticus cause to "spank" him.

readability="5">

'Atticus ain't ever whipped me since I can
remember. I wanna keep it that
way.'

Jem shares this with
Scout when he goes out that night to get his pants—mostly because she threatens to tell
Atticus that he is going. Jem leaves and Scout is on pins and needles until Jem quietly
returns with his pants, silently climbs into bed and finally goes to
sleep.