--- product_id: 512082671 title: "Thames & Kosmos Spy Labs Inc: Secret Message Tools Exchange Confidential Info w/Secret Pens | Essential Tools & Tricks of The Trade from The Detective Gear Experts for Young Investigators Medium" brand: "thames & kosmos" price: "€ 13.50" currency: EUR in_stock: true reviews_count: 9 category: "Thames & Kosmos" url: https://www.desertcart.pt/products/512082671-thames-and-kosmos-spy-labs-inc-secret-message-tools-exchange store_origin: PT region: Portugal --- # Comes with notepad & manual for guided missions Includes forensic tools for detective play 2 secret pens with invisible ink Thames & Kosmos Spy Labs Inc: Secret Message Tools Exchange Confidential Info w/Secret Pens | Essential Tools & Tricks of The Trade from The Detective Gear Experts for Young Investigators Medium **Brand:** thames & kosmos **Price:** € 13.50 **Availability:** ✅ In Stock ## Summary > 🕵️‍♂️ Unlock the secrets of spycraft—because every young agent deserves the ultimate toolkit! ## Quick Answers - **What is this?** Thames & Kosmos Spy Labs Inc: Secret Message Tools Exchange Confidential Info w/Secret Pens | Essential Tools & Tricks of The Trade from The Detective Gear Experts for Young Investigators Medium by thames & kosmos - **How much does it cost?** € 13.50 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/512082671-thames-and-kosmos-spy-labs-inc-secret-message-tools-exchange) ## Best For - thames & kosmos enthusiasts ## Why This Product - Trusted thames & kosmos brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Invisible Ink Magic:** Write secret messages that vanish once dry, only revealed by the matching pen—perfect for covert communication. - • **No Batteries Needed:** Manual operation means instant spy action anytime, anywhere—no charging, no downtime. - • **Interactive Spy Play:** Designed for kids 8+, encourages teamwork and role-play as they crack codes and solve mysteries together. - • **Complete Detective Kit:** Includes pens, brush, petri dish, and notepad to immerse young investigators in authentic spy gear and forensic fun. - • **Trusted Detective Experts:** From Thames & Kosmos, a leader in educational science kits, ensuring quality and engaging learning experiences. ## Overview Thames & Kosmos Spy Labs Inc: Secret Message Tools is a medium-sized, battery-free detective kit designed for kids 8 and up. It features two unique pens with invisible ink for exchanging confidential messages, plus forensic tools like a brush, petri dish, and notepad. This interactive set promotes imaginative play and teamwork, making it a top choice for aspiring young investigators eager to master the art of secret communication. ## Description As a detective, you need the right equipment for your investigations, including tools for writing and uncovering secret messages. Exchange confidential messages with your fellow agent using disappearing and reappearing ink that only the two of you can read! Using either of the two secret pens, you can write a message that, once dry, becomes invisible. The other pen will not only reveal the information, but you can also use it to send your reply. From Spy Labs, the Detective Gear Experts! Review: Fun - Bought this as a gift .they seemed to enjoy it! Review: Detective game - I bought for my knees who likes to be detective . You need another player to play this . ## Features - Spy Labs Incorporated's activity kits and equipment provide an engaging and interactive way for kids to learn about detective work, including forensic analysis and tracking techniques. - Includes two unique pens that allow you and your fellow agents to exchange secret, confidential messages. - The pens use a special ink that becomes invisible once dry; write a secret message with one pen and rest assured: only the other pen can be used to reveal what you wrote! - Promotes pretend play as kids ages 8 and up take on the role of detective, setting out to unravel mysteries one tough case at a time. - Become a first-class secret agent with Spy Labs, the Detective Gear Experts; your trusted source for all your essential spy tools and gear! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BS4GZS3S | | Age Range Description | Kid | | Best Sellers Rank | #139,664 in Toys & Games ( See Top 100 in Toys & Games ) #62 in Toy Electronic Spy Gear | | Brand Name | Thames & Kosmos | | Color | Red | | Customer Reviews | 4.0 out of 5 stars 73 Reviews | | Educational Objective | Reading | | Global Trade Identification Number | 10814743017723 | | Included Components | 2 secret pens, brush, petri dish, and notepad, manual | | Indoor Outdoor Usage | Indoor | | Is Assembly Required | No | | Item Dimensions | 4.3 x 1.2 x 2.9 inches | | Item Type Name | Toy Detective Gear | | Manufacturer | Thames & Kosmos | | Manufacturer Maximum Age (MONTHS) | 360.0 | | Manufacturer Minimum Age (MONTHS) | 96.0 | | Manufacturer Part Number | 548013 | | Material Type | Plastic | | Model Number | 548013 | | Number of Players | 1 | | Operation Mode | Manual | | Power Source | Manual | | Set Name | Secret Message Tools | | Size | Medium, Small | | Supported Battery Types | Not required | | Theme | Detective, Spying | | UPC | 814743017726 | ## Images ![Thames & Kosmos Spy Labs Inc: Secret Message Tools Exchange Confidential Info w/Secret Pens | Essential Tools & Tricks of The Trade from The Detective Gear Experts for Young Investigators Medium - Image 1](https://m.media-amazon.com/images/I/81OcTSItcEL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fun *by M***T on March 16, 2026* Bought this as a gift .they seemed to enjoy it! ### ⭐⭐⭐ Detective game *by N***U on April 14, 2026* I bought for my knees who likes to be detective . You need another player to play this . ### ⭐⭐⭐⭐ simple but fun *by R***E on September 20, 2024* This review is for the Thames & Kosmos Spy Labs Inc: Secret Message Tools Exchange Confidential Info w/Secret Pens. The metal storage tin is cute and useful. The kit consists of a small notepad, a petri dish, 2 pens, 1 brush, and a small info insert. The first secret message method is using the magic pens. The second method is to use household items like milk or juice from lemon, apple, or onion and then to reveal the dried message using heat from a 400 degree oven. This kit is small but fun. My kids have used invisible ink UV spy pens in the past and had fun. I think that they’ll like adding a few new methods for writing secret messages. ## Frequently Bought Together - Thames & Kosmos Spy Labs Inc: Secret Message Tools Exchange Confidential Info w/Secret Pens | Essential Tools & Tricks of The Trade from The Detective Gear Experts for Young Investigators Medium - Thames & Kosmos Spy Labs Inc: Fingerprinting Kit Identify, Collect, Analyze Fingerprint Evidence | Essential Tools and Tricks of The Trade from The Detective Gear Experts for Young Investigators - Thames & Kosmos Spy Labs Inc: Secret Codes and Ciphers Learn How to Make & Exchange Coded Messages! | Essential Tools & Tricks of The Trade from The Detective Gear Experts for Young Investigators --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/512082671-thames-and-kosmos-spy-labs-inc-secret-message-tools-exchange](https://www.desertcart.pt/products/512082671-thames-and-kosmos-spy-labs-inc-secret-message-tools-exchange) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-21*