How to use "disappear" in a sentence

The girls disappear into the west canyon

I open my shorts and watch the yellow urine disappear into the sand.

I pick up the bottle and feel the last of the water disappear down my throat

It is only when they disappear and the cold and pain return that I know they are not

But Sala wasn't going to let her disappear this time

Her obsessive fear of intruders in the house, her disquieting dreams about Danny, her renewed grief - all of those things might grow from her concern about Magyck! If that were the case, then those symptoms would disappear as soon as the fate of the show was evident

He wheeled around another corner, and then another, trying to disappear from the men in the van long enough to leave them with so many choices of streets to follow that they would have to give up the chase in confusion

A traveller would be placed in a cabin at the station, the machine would be turned on, and the traveller would disappear and reappear almost immediately at the chosen receiving station.

I must disappear