I understand that shifting tenses mid-sentence is a serious no-no, and the mark of a pretty terrible writer (i.e... John walks to the door, and he wondered what he'd say to Mary.) But how about shifting tenses in different sentences of the same paragraph? Take this passage from my WIP... Tom rushed back to his office, still donning the necklace under his half-open shirt, and grabbed a form from the filing cabinet. He scoured the desk for a pen. Frantic. Eyes flashing and darting like fireflies. ... Switching the last sentence to 3rd/past, like the rest of the passage, just doesn't sound as good to me. Thoughts?