Search
- Series
- Issue
- Character
- Category
- Variant
- Artist
- Writer
- Publisher

Key Alerts
New Comics
Community
Login

Search

Series
Issue
Character
Category
Variant
Artist
Writer
Publisher

Key Alerts New Comics Community Subscribe Login

Home
DC
Challengers of the Unknown
Challengers of the Unknown #17

DC Released June 1998

Challengers of the Unknown #17

Previous Next

Low

$1

Mid

$2

High

$3

Published June 1998

Cover Price $2.50

"Black Helicopter"

Track your collection

Log in or create a free account to track owned and wanted issues.

Log in Sign up

CGC 9.8

$ ###

CGC 9.6

$ ###

CGC 9.4

$ ###

Unlock graded prices

Create a free account and subscribe to unlock CGC-grade pricing, sales history, and premium tools.

Sign Up & Subscribe

Already have an account? Log in

Creators

Artist

George Freeman
Writer

Steven Grant
Inker

Bill Reinhold

Characters

No characters listed.

Previous Next

Cover art for Challengers of the Unknown #17

Quick Guide

Actions

Add to your collection, mark as wanted, or add to pull list.

Open Details

Click anywhere to view full issue details.

Series & Variants

Browse the full series run or see alternate variant covers.

Price Guide

View recent sales and estimated values.

Values at a Glance

Quickly see low, mid, and high condition estimates.

Shop on eBay

Find active listings to buy or compare prices.

Curated Context

Read why an issue matters and other key notes.

Terms & Agreements Privacy Policy FAQs Contact Us

Key Collector Comics, 2026 - All rights reserved.

Subscribe to Unlock

View Graded Pricing

Unlock graded pricing and other premium features by subscribing to Key Collector Comics.

Subscribe Learn what's included