Jem really has no fear of the gifts he finds in the knothole from Boo Radley. At first, he warns Scout about the chewing gum that she retrieves--the very first gift; he suggests that it may be poisoned, but Scout realizes later (since she is still alive) that there is no worry for that. Jem also worries that he may be taking someone else's belongings--that the gifts may be left for someone else, or that the knothole may be someone's secret hiding place. But he soon becomes enthralled with the gifts and their value for someone so young (and in such a time as the Great Depression). The real clincher is when he finds the carved soap figurines: They are likenesses of Jem and Scout, and then he knows for sure that the gifts are meant for him and his sister.
No. Jem don't fear the gifts no more. I'm only 16 but I read the book twice and Jem knows that it's just Boo's way of communicating with him and Scout. He knows that Boo don't come out of his house but he likes the fact that he can still communicate with him. If he was still fearing the gifts, he wouldn't have written a letter of thanks towards Boo. Once MrNathan Radley fills the tree with cement, Jem cries. He cries because he won't ever be able to give Boo that letter. So on my part, I say that Jem isn't fearing the gifts any longer.
The gifts were from Boo Radley and he was trying to communicate with them. At first Jem is skeptical about whether or not he should take the items in case it is someone else, but he soon begins to realize these gifts were meant for him and his sister. He never really had any fear, he was just skeptical.