Complex sentence: Misty later comes across the pillow with Mick in it, and discovers that she has strange urges to lie next to it; the insect invades her much-chewed and saliva-doused ear with its proboscis.
Split into simpler sentences: Misty later comes across the pillow with Mick in it, and discovers that she has strange urges to lie next to it. The insect then invades her much-chewed and saliva-doused ear with its proboscis.