# Shelley Holmes, Ace Detective (Treetops) by Michaela Morgan — resale value

Source: JunkPal price guide — https://junkpal.ai/products/shelley-holmes-ace-detective-treetops-michaela-morgan-ol3949900w

**Shelley Holmes, Ace Detective (Treetops) by Michaela Morgan** — resale value from real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/shelley-holmes-ace-detective-treetops-michaela-morgan-ol3949900w

Values are medians of real closed eBay sales, updated 2026-06-18. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DShelley%2520Holmes%2520Ace%2520Detective%2520Treetops%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DShelley%2520Holmes%2520Ace%2520Detective%2520Treetops%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

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## Details

| Field | Value |
| --- | --- |
| UPC / EAN | 0861744896 |
| Brand | Michaela Morgan |
| Published | 1998 |
| Publisher | Oxf.U.P. |
| Pages | 48 |
| Editions | 8 |
| Category | Health |

## Shelley Holmes, Ace Detective (Treetops) resale value

**Shelley Holmes, Ace Detective (Treetops)** by Michaela Morgan (1998). Across 8 editions. Used-book value depends heavily on edition (first printing vs. reprint), condition, dust jacket, and whether it's signed. First editions and out-of-print titles command the biggest premiums.

### What drives the price

First editions/first printings, intact dust jackets, signatures, and unmarked pages are the top value drivers. Book-club editions and later reprints are worth far less.

## FAQ

**Is this a rare edition of Shelley Holmes?**

This is the 8th edition, published in 1998 by Oxf.U.P.

**What is the original publication year?**

The book was published in 1998 by Michaela Morgan.

**How many pages does this book have?**

Shelley Holmes, Ace Detective has 48 pages.

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Full price guide: https://junkpal.ai/products/shelley-holmes-ace-detective-treetops-michaela-morgan-ol3949900w
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-06-18, based on real sold listings (junkpal.ai)"