Horrifying surprise

Players are in a scary forest. There is an old tree painted on the wall, with a real hole in the trunk (Mystery Hole sensor). It should not be well-lit so players don't see it right away. On the other side of the room, there is a creepy squirrel toy next to a spot with a symbol of a nut. Players need to find a nut (with a magnet inside) and place it on this spot (with a Magnetic sensor underneath) to trigger a prerecorded message "I hate my brother who lives in the hollow in the tree. Do me a favor and pull his tail". Then, players need to put their hand into this hole (that triggers a squirrel-like shriek) and pull something inside for a fake apple to drop from a ceiling (held by an electro-lock). The apple has a hint for the next puzzle. Electronics needed: 🧲 Magnetic sensor, 🕳 Mystery Hole sensor, 🧩 Universal puzzle controller, 🧲 Electro-lock output set