As Mark left on a walk over to the local ice cream parlor he forewarned his mother: ""I am going on a long and dangerous journey."" The left hand pictures show him passing the usual in suburban, residential landmarks; the right hand ones offer Mark's version of a safari into the heart of darkness. A postman becomes a giant, a Thurberish puppy bares ferocious wolf teeth, some hose drippings are an enormous lake complete with crocodiles. It's a low-key version of a popular theme, and nicely done. Mark's train of exaggeration has its internal logic; he is not afflicted with a super-abundance of outre imagination.