"Sure, walk right in, Toby. My latch-string is always out to my chums. I see you managed to pick up Steve on the way across; but I wager you had really to pry him loose from that dandy new volume on travel he was telling me about, because he's such a bookworm." The two boys who hastened to accept this warm invitation, and enter Jack Winters' snug "den" were his most particular chums. Those who have been lucky enough to read the preceding volume of this series ] will of course require no introduction to Steve Mullane and Toby Hopkins. However, as many newcomers may for the first time be making the acquaintance of the trio in these pages, it might be just as well to enumerate a few of their leading characteristics, and then we can get along with our story.