Boo Radley. It's explained later in the novel.
Boo Radley leaves gifts for the children in the knothole of the tree.
Mr. Radley filled the knothole up with cement.
It is implied in "To Kill a Mockingbird" that Boo Radley was responsible for leaving the gifts in the knothole for Scout and Jem. As for the sewing of Jem's torn pants, it is strongly suggested that Boo Radley also performed this act of kindness as a way to connect with the children and show his goodwill towards them.
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Scout and Jem find Boo's gifts in a knothole, beside his house.
That the knothole has been filled with cement. That's what was on Spark Notes.
U mean the one in the knothole of the tree? The clock and other stuffs in the knothole were the gifts presented to Scout and Jems anonymously by Boo Radley.
To show friendship to the children, Boo Radley left small gifts in a knothole of the tree. They were small, but with much meaning from Boo.
Mr. Radley was responsible for the knothole incident because he filled it with cement to prevent communication between Boo and the Finch children. This actions caused Boo to feel isolated and cut off from the outside world.
The tree with a knothole in "To Kill a Mockingbird" symbolizes hidden treasures and acts as a place where Boo Radley can subtly communicate with Scout and Jem. It also represents empathy, understanding, and the innocence of childhood.
Jem and Scout find small gifts left in the knothole of the tree near the Radley house, including two small figures carved out of soap, a broken pocket watch, and a spelling bee medal. These gifts are likely left by Boo Radley as gestures of goodwill towards the children.
Jen may have felt a range of emotions after the knothole was patched, including a sense of loss or nostalgia for the past when she used to interact with the creatures, a feeling of helplessness in not being able to protect or advocate for them, or a deep connection to the natural world that was disrupted by the patching of the knothole.