Mystery Monday: Not in Wonderland, Part X

The sand-shark thing then disappeared, except
Its jagged, pointed, terrifying grin
Which kept on talking. "Too bad that you kept
That shooting iron from the bargain bin."
"Be silent," snapped the rifle. "Well, that's rude,"
The shark replied. "How is it that you speak
At all, I wonder?" Alice gasped, and shoo'd
In its direction, but her arms were weak
And nothing much was left to chase away.
"You're seeing things," her rifle quipped. "You're mad."
"I quite agree, but I would have to say
You're hearing things. A talking rifle? Sad!"
The sharky teeth were back, and, laughing, she
Just dropped her gun and made as if to flee!