On 30 June 1908, near the Tunguska River in Siberia, a mysterious shock wave flattened 2,150 square metres of taiga forest. The explosion sparked numerous hypotheses and inspired many works of fiction. 117 years later, a similar event took place in Walpole Park, Ealing. Thistles in an area roughly the size of half a tennis court have been flattened by an unknown force. On Tuesday evening, the GoodGym Ealing Team set off around sunset to investigate the unusual occurrence.

Bryon and Kash headed to the Rangers' secret facility to collect scientific equipment while Steph and Sevan scouted the outer area of Walpole Park, running. Apart from the closed and taped gate, they haven't found anything worth reporting, so they reunited with the rest of the team. In the Rangers' base, the GoodGymers read the research materials about thistles. Easy to pull when young, was the key information. It seemed that the knowledge from seemingly unrelated fields applied to nature conservation. Armed with that advice, the team collected a trolley and a minimum of tools, just in case they would encounter mature thistles.

The site of the unnatural phenomenon, located near the park entrance close to Lammas Park, looked odd, but passers-by didn't seem to pay too much attention to the anomaly. The GoodGymers started collecting samples, and, in the process, they pulled out almost all the felled thistles. It appeared as if they were now covering up the incident. Kash took the first full trolley to dispose of the evidence. On the way through the dark park, she encountered a couple on the bench.

"Is that for the giraffes?", the man asked at the sight of the heap of thistles.
"Yes, and they already want seconds!"
"Ha. Very hungry!"

Steph was the one to bring the giraffes the "seconds", hauling the next trolley to the space where the Rangers kept sensitive evidence. Meanwhile, the team progressed with clearance so far that they have pulled out the thistles that hadn't even been knocked down. The third and final trolley was pulled by Sevan, with the assistance of the rest of the team, in case they weren't able to pull off the giraffe feed excuse anymore and would have to deal with the witnesses of the thistle drop off. Luckily, nothing like that happened, and all the evidence was safely disposed of in the designated area.