CREATURES ON THE LOOSE #29

Cover shows strong color and gloss with sharp corners and a tight spine; no visible spine ticks or stress lines in this photo. Minor handling wear is possible but not clearly visible; the book is protected in a plastic sleeve, and slight glare from the sleeve obscures fine surface detail. No creases, tears, or stains are apparent on the front cover. Interior pages and back cover were not assessed, so the grade reflects front-cover appearance only.

Creatures on the Loose #29 closes out Marvel's serialized adaptation of Edwin Lester Arnold's Lieutenant Gullivar Jones: His Vacation, a Mars-set adventure strip the publisher ran across issues #16-29 of this anthology-turned-feature title. The next issue would pivot the series entirely to Man-Wolf, making #29 the terminal installment of the Jones run and a minor bookend for readers tracking Marvel's mid-1970s sword-and-planet output. It carries no first appearance, origin, or landmark creative milestone, and its cover is not among the images regularly cited in price guides or collector polls.

Market data reflects a thinly collected Bronze Age filler book: total certified population sits at just 31 copies, with almost all recorded sales clustered at the top of the grade scale. Demand is driven almost entirely by CGC 9.8 and 9.6 registry completists rather than by character or story interest, and the near-total silence in sales data below grade 8 indicates raw copies move infrequently and at modest prices when they do.

This is a book for series completists and Bronze Age Marvel anthology collectors rather than character-driven buyers. Raw copies in low and mid grades trade as inexpensive filler, generally acquired in bulk lots or as part of a run rather than sought individually. High-grade certified copies, particularly 9.8, command a real premium relative to the rest of the curve, reflecting the difficulty of finding well-preserved copies of a lower-print, lower-demand title rather than any inherent collector significance of the issue itself.