Yes
"Vanish into thin air" means to disappear suddenly and completely without leaving a trace.
No, "gape" does not fit in this sentence. "Vanish" already implies that the magician's assistant disappeared suddenly or mysteriously, so the word "gape" (meaning to open wide) would not be appropriate in this context.
"Into Thin Air" was written by Jon Krakauer. The book recounts his personal account of the 1996 Mount Everest disaster, in which eight climbers died during a storm.
Thin air at high altitudes is caused by lower atmospheric pressure, which leads to fewer air molecules in a given volume of air. As altitude increases, the pressure decreases, making it harder for the human body to get enough oxygen.
There is no scientific evidence to support the idea of things vanishing into thin air. Such occurrences are often attributed to misunderstandings, misplacement, or human error.
It comes from Shakespeare. First in Othello and then in Tempest. The full phrase, Vanish into thin air, didn't start until the early 19th century. But the phrase surely started with Shakespeare.
Hyperbole
If Google can't find her, no one can. She's disappeared into thin air.
Oh, dude, you won't believe it! So, the ghost that disappeared in the fog? Turns out it just like, evaporated into thin air. Like, poof! Ghost gone. Probably off haunting a Starbucks now or something, who knows.
Hyperbole
Into Thin Air was created in 1997.
The ISBN of Into Thin Air is 9780385494786.
evaporationevaporation
Thin Air - novel - was created in 1995.
hyberbilye hyperbole
Into Thin Air has approximately 66,000 words.
because it is so high , the air is cool and thin.